Armstrong Number

An Armstrong Number is a number of three digits, such that the sum of the cubes of it's digits is equal to the number itself. It's a specific case of Narcissistic Numbers.

For example 407 is an Armstrong Number; because 4³ + 0³ + 7³ = 64 + 0 + 343 = 407.

Further Reading

Wikipedia - Narcissistic/ Armstrong Number

---

<p align="center"> A massive collaborative effort by <a href="https://github.com/OpenGenus/cosmos">OpenGenus Foundation</a> </p>

---