472564657 has 8 divisors (see below), whose sum is σ = 517617000. Its totient is φ = 429429504.

The previous prime is 472564639. The next prime is 472564663. The reversal of 472564657 is 756465274.

It can be written as a sum of positive squares in 4 ways, for example, as 107143201 + 365421456 = 10351^2 + 19116^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 472564657 - 2⁷ = 472564529 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (472564627) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 478782 + ... + 479767.

It is an arithmetic number, because the mean of its divisors is an integer number (64702125).

Almost surely, 2^472564657 is an apocalyptic number.

It is an amenable number.

472564657 is a deficient number, since it is larger than the sum of its proper divisors (45052343).

472564657 is a wasteful number, since it uses less digits than its factorization.

472564657 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 958595.

The product of its digits is 1411200, while the sum is 46.

The square root of 472564657 is about 21738.5523207043. The cubic root of 472564657 is about 778.9096407569.

The spelling of 472564657 in words is "four hundred seventy-two million, five hundred sixty-four thousand, six hundred fifty-seven".