57694813 has 16 divisors (see below), whose sum is σ = 65912832. Its totient is φ = 50022000.

The previous prime is 57694801. The next prime is 57694823. The reversal of 57694813 is 31849675.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-57694813 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 57694813.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (57694823) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 23020 + ... + 25402.

It is an arithmetic number, because the mean of its divisors is an integer number (4119552).

Almost surely, 2^57694813 is an apocalyptic number.

It is an amenable number.

57694813 is a deficient number, since it is larger than the sum of its proper divisors (8218019).

57694813 is a wasteful number, since it uses less digits than its factorization.

57694813 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2496.

The product of its digits is 181440, while the sum is 43.

The square root of 57694813 is about 7595.7101708793. The cubic root of 57694813 is about 386.4075380173.

The spelling of 57694813 in words is "fifty-seven million, six hundred ninety-four thousand, eight hundred thirteen".