57942857 has 8 divisors (see below), whose sum is σ = 66270336. Its totient is φ = 49627872.

The previous prime is 57942809. The next prime is 57942877. The reversal of 57942857 is 75824975.

It is a happy number.

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

It is not a de Polignac number, because 57942857 - 2⁶ = 57942793 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (57942877) 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, 11228 + ... + 15554.

It is an arithmetic number, because the mean of its divisors is an integer number (8283792).

Almost surely, 2^57942857 is an apocalyptic number.

It is an amenable number.

57942857 is a deficient number, since it is larger than the sum of its proper divisors (8327479).

57942857 is a wasteful number, since it uses less digits than its factorization.

57942857 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6247.

The product of its digits is 705600, while the sum is 47.

The square root of 57942857 is about 7612.0205596149. The cubic root of 57942857 is about 386.9604995884.

The spelling of 57942857 in words is "fifty-seven million, nine hundred forty-two thousand, eight hundred fifty-seven".