A Narcissistic Number is a number which is the sum of its own digits, each raised to the power of the number of digits.

narcissistic.js

// For example, take 153 (3 digits):

//    1^3 + 5^3 + 3^3 = 1 + 125 + 27 = 153
// and 1634 (4 digits):

//    1^4 + 6^4 + 3^4 + 4^4 = 1 + 1296 + 81 + 256 = 1634
// The Challenge:

// Your code must return true or false depending upon whether the given number is a Narcissistic number.

// Error checking for text strings or other invalid inputs is not required, only valid integers will be passed into the function.

function narcissistic( value ) {
  var getPow = value.toString().split('').map(function(x) {
    return Math.pow(x, value.toString().length);
  });
  var getAccumValue = getPow.reduce(function(a, c) {
	  return a + c;
  });

  // Passing result.
  return getAccumValue === value;
}

def narcissistic( value ):
# Code away
total=[]
number=len(str(value))
power=int(number)
digits=[int(x) for x in str(value)]
for i in digits:
product=i**power
total.append(product)
sumtotal=sum(total);
if (sumtotal==value):
print (str(value)+"is a narcisstic number")
else:
print (str(value)+"is not a narcisstic number")