57868865 has 8 divisors (see below), whose sum is σ = 69538920. Its totient is φ = 46230912.

The previous prime is 57868861. The next prime is 57868879. The reversal of 57868865 is 56886875.

It can be written as a sum of positive squares in 4 ways, for example, as 10699441 + 47169424 = 3271^2 + 6868^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 57868865 - 2² = 57868861 is a prime.

It is not an unprimeable number, because it can be changed into a prime (57868861) 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, 3860 + ... + 11429.

It is an arithmetic number, because the mean of its divisors is an integer number (8692365).

Almost surely, 2^57868865 is an apocalyptic number.

It is an amenable number.

57868865 is a deficient number, since it is larger than the sum of its proper divisors (11670055).

57868865 is a wasteful number, since it uses less digits than its factorization.

57868865 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16051.

The product of its digits is 3225600, while the sum is 53.

The square root of 57868865 is about 7607.1587994467. The cubic root of 57868865 is about 386.7957155297.

The spelling of 57868865 in words is "fifty-seven million, eight hundred sixty-eight thousand, eight hundred sixty-five".