657064675 has 6 divisors (see below), whose sum is σ = 814760228. Its totient is φ = 525651720.

The previous prime is 657064657. The next prime is 657064693. The reversal of 657064675 is 576460756.

657064675 = 2018² + 2019² + ... + 2167².

It is an interprime number because it is at equal distance from previous prime (657064657) and next prime (657064693).

It is not a de Polignac number, because 657064675 - 2⁵ = 657064643 is a prime.

It is a Duffinian number.

It is an unprimeable number.

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 in 5 ways as a sum of consecutive naturals, for example, 13141269 + ... + 13141318.

Almost surely, 2^657064675 is an apocalyptic number.

657064675 is a deficient number, since it is larger than the sum of its proper divisors (157695553).

657064675 is a wasteful number, since it uses less digits than its factorization.

657064675 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26282597 (or 26282592 counting only the distinct ones).

The product of its (nonzero) digits is 1058400, while the sum is 46.

The square root of 657064675 is about 25633.2728109385. The cubic root of 657064675 is about 869.3661102366.

The spelling of 657064675 in words is "six hundred fifty-seven million, sixty-four thousand, six hundred seventy-five".