472934857 has 2 divisors, whose sum is σ = 472934858. Its totient is φ = 472934856.

The previous prime is 472934831. The next prime is 472934863. The reversal of 472934857 is 758439274.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 284394496 + 188540361 = 16864^2 + 13731^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-472934857 is a prime.

It is a super-2 number, since 2×472934857² = 447334757931220898, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 472934857.

It is not a weakly prime, because it can be changed into another prime (472934867) 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, 236467428 + 236467429.

It is an arithmetic number, because the mean of its divisors is an integer number (236467429).

Almost surely, 2^472934857 is an apocalyptic number.

It is an amenable number.

472934857 is a deficient number, since it is larger than the sum of its proper divisors (1).

472934857 is an equidigital number, since it uses as much as digits as its factorization.

472934857 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1693440, while the sum is 49.

The square root of 472934857 is about 21747.0654801976. The cubic root of 472934857 is about 779.1129830089.

The spelling of 472934857 in words is "four hundred seventy-two million, nine hundred thirty-four thousand, eight hundred fifty-seven".