457664531 has 8 divisors (see below), whose sum is σ = 486139824. Its totient is φ = 429361920.

The previous prime is 457664443. The next prime is 457664549. The reversal of 457664531 is 135466754.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-457664531 is a prime.

It is a super-2 number, since 2×457664531² = 418913645870899922, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (457664551) 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, 37685 + ... + 48326.

It is an arithmetic number, because the mean of its divisors is an integer number (60767478).

Almost surely, 2^457664531 is an apocalyptic number.

457664531 is a deficient number, since it is larger than the sum of its proper divisors (28475293).

457664531 is a wasteful number, since it uses less digits than its factorization.

457664531 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 86341.

The product of its digits is 302400, while the sum is 41.

The square root of 457664531 is about 21393.0954048263. The cubic root of 457664531 is about 770.6356313265.

The spelling of 457664531 in words is "four hundred fifty-seven million, six hundred sixty-four thousand, five hundred thirty-one".