57868231 has 2 divisors, whose sum is σ = 57868232. Its totient is φ = 57868230.

The previous prime is 57868229. The next prime is 57868241. The reversal of 57868231 is 13286875.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 57868231 - 2¹ = 57868229 is a prime.

It is a super-2 number, since 2×57868231² = 6697464318138722, which contains 22 as substring.

Together with 57868229, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (57868201) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28934115 + 28934116.

It is an arithmetic number, because the mean of its divisors is an integer number (28934116).

Almost surely, 2^57868231 is an apocalyptic number.

57868231 is a deficient number, since it is larger than the sum of its proper divisors (1).

57868231 is an equidigital number, since it uses as much as digits as its factorization.

57868231 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 80640, while the sum is 40.

The square root of 57868231 is about 7607.1171280584. The cubic root of 57868231 is about 386.7943029717.

The spelling of 57868231 in words is "fifty-seven million, eight hundred sixty-eight thousand, two hundred thirty-one".