57812879 has 2 divisors, whose sum is σ = 57812880. Its totient is φ = 57812878.

The previous prime is 57812857. The next prime is 57812891. The reversal of 57812879 is 97821875.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-57812879 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (57812809) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28906439 + 28906440.

It is an arithmetic number, because the mean of its divisors is an integer number (28906440).

Almost surely, 2^57812879 is an apocalyptic number.

57812879 is a deficient number, since it is larger than the sum of its proper divisors (1).

57812879 is an equidigital number, since it uses as much as digits as its factorization.

57812879 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 282240, while the sum is 47.

The square root of 57812879 is about 7603.4780857184. The cubic root of 57812879 is about 386.6709384024.

The spelling of 57812879 in words is "fifty-seven million, eight hundred twelve thousand, eight hundred seventy-nine".