23497

This number is a prime.

23497 is the smallest distinct-digit prime which is the sum of powers of its digits in four different ways: 23497 = 2^5 + 3^4 + 4^2 + 9^4 + 7^5 = 2^5 + 3^8 + 4^2 + 9^2 + 7^5 = 2^7 + 3^4 + 4^7 + 9^4 + 7^3 = 2^7 + 3^8 + 4^7 + 9^2 + 7^3. [Vantieghem]