def narcissistic( value ):

    value = str(value)

    size = len(value)

    sum = 0

    for i in value:

        sum += int(i) ** size

    return sum == int(value)

public static bool IsNarcissistic(int number)

{

  var sum = 0;

  var temp = number;

  var numberOfDigits = 0;

  while (temp != 0)

  {

    numberOfDigits++;

    temp /= 10;

  }

​

  temp = number;

  while (number > 0)

  {

    var remainder = number % 10;

    var power = (int)Math.Pow(remainder, numberOfDigits);

​

    sum += power;

    number /= 10;

  }

​

  return sum == temp;

}

//153 = 1^3 + 5^3 + 3^3 = 1+125+27 = 153

//the above line shows the meaning of narcissistic,meaning sum of power of number should be 

//equal to that number 153===153

const isNarcissistic = (num) => {

   let m = 1, count = 0;

   while(num / m > 1){

      m *= 10;

      count++;

   };

   let sum = 0, temp = num;

   while(temp){

      sum += Math.pow(temp % 10, count);

      temp = Math.floor(temp / 10);

   };

   return sum === num;

};