875670561 has 32 divisors (see below), whose sum is σ = 1385838720. Its totient is φ = 544545792.

The previous prime is 875670557. The next prime is 875670563. The reversal of 875670561 is 165076578.

875670561 is a `hidden beast` number, since 87 + 5 + 6 + 7 + 0 + 561 = 666.

It is not a de Polignac number, because 875670561 - 2² = 875670557 is a prime.

It is not an unprimeable number, because it can be changed into a prime (875670563) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 43426 + ... + 60308.

It is an arithmetic number, because the mean of its divisors is an integer number (43307460).

Almost surely, 2^875670561 is an apocalyptic number.

It is an amenable number.

875670561 is a deficient number, since it is larger than the sum of its proper divisors (510168159).

875670561 is a wasteful number, since it uses less digits than its factorization.

875670561 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17022 (or 17016 counting only the distinct ones).

The product of its (nonzero) digits is 352800, while the sum is 45.

The square root of 875670561 is about 29591.7312944005. The cubic root of 875670561 is about 956.7098598641.

The spelling of 875670561 in words is "eight hundred seventy-five million, six hundred seventy thousand, five hundred sixty-one".