472972417 has 2 divisors, whose sum is σ = 472972418. Its totient is φ = 472972416.

The previous prime is 472972399. The next prime is 472972441. The reversal of 472972417 is 714279274.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 465221761 + 7750656 = 21569^2 + 2784^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-472972417 is a prime.

It is not a weakly prime, because it can be changed into another prime (472972457) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 236486208 + 236486209.

It is an arithmetic number, because the mean of its divisors is an integer number (236486209).

Almost surely, 2^472972417 is an apocalyptic number.

It is an amenable number.

472972417 is a deficient number, since it is larger than the sum of its proper divisors (1).

472972417 is an equidigital number, since it uses as much as digits as its factorization.

472972417 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 197568, while the sum is 43.

The square root of 472972417 is about 21747.9290278408. The cubic root of 472972417 is about 779.1336079136.

The spelling of 472972417 in words is "four hundred seventy-two million, nine hundred seventy-two thousand, four hundred seventeen".