from flask import Flask, request, jsonify from flask_cors import CORS import requests import math  app = Flask(__name__) CORS(app)  def is_prime(num):     if num <= 1 or num % 1 != 0:         return False     num = int(num)     for i in range(2, int(math.sqrt(num)) + 1):         if num % i == 0:             return False     return True  def is_armstrong(num):     if num % 1 != 0:  # Only whole numbers can be Armstrong numbers         return False     num = abs(int(num))     digits = [int(digit) for digit in str(num)]     power = len(digits)     return sum(digit ** power for digit in digits) == num  def get_fun_fact(num):     url = f"http://numbersapi.com/{num}/math"     response = requests.get(url)     return response.text if response.status_code == 200 else "No fun fact found"  @app.route('/api/classify-number', methods=['GET']) def classify_number():     number = request.args.get('number')      try:         number = float(number)     except (ValueError, TypeError):         return jsonify({"number": number, "error": "true"}), 400      armstrong = is_armstrong(number)     prime = is_prime(number)     even = number % 2 == 0     digit_sum = sum(map(int, str(abs(int(number)))))     fun_fact = get_fun_fact(int(number))      properties = []     if armstrong:         properties.append("armstrong")     properties.append("even" if even else "odd")      return jsonify({         "number": number,         "is_prime": prime,         "is_perfect": False,  # No perfect number check required         "properties": properties,         "digit_sum": digit_sum,         "fun_fact": fun_fact     })  if __name__ == "__main__":     app.run()