85568913 has 24 divisors (see below), whose sum is σ = 133807200. Its totient is φ = 54037368.

The previous prime is 85568893. The next prime is 85568953. The reversal of 85568913 is 31986558.

85568913 is a `hidden beast` number, since 8 + 556 + 8 + 91 + 3 = 666.

It is not a de Polignac number, because 85568913 - 2⁸ = 85568657 is a prime.

It is not an unprimeable number, because it can be changed into a prime (85568953) 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 in 23 ways as a sum of consecutive naturals, for example, 5358 + ... + 14136.

It is an arithmetic number, because the mean of its divisors is an integer number (5575300).

Almost surely, 2^85568913 is an apocalyptic number.

It is an amenable number.

85568913 is a deficient number, since it is larger than the sum of its proper divisors (48238287).

85568913 is a wasteful number, since it uses less digits than its factorization.

85568913 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8826 (or 8801 counting only the distinct ones).

The product of its digits is 259200, while the sum is 45.

The square root of 85568913 is about 9250.3466421535. The cubic root of 85568913 is about 440.6617332889.

The spelling of 85568913 in words is "eighty-five million, five hundred sixty-eight thousand, nine hundred thirteen".