Write a Python program to check whether a number is Armstrong number or not. Note: An Armstrong number is an n-digit number that is equal to the sum of the nth powers of its digits ...

An Armstrong number is equal to the sum of its own digits each raised to the power of the number of digits. For example, 370 is an Armstrong number because 3*3*3 + 7*7*7 + 0*0*0 = 370. Armstrong ...