57039686 has 16 divisors (see below), whose sum is σ = 94303440. Its totient is φ = 25658880.

The previous prime is 57039677. The next prime is 57039707. The reversal of 57039686 is 68693075.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11231 + ... + 15498.

It is an arithmetic number, because the mean of its divisors is an integer number (5893965).

Almost surely, 2^57039686 is an apocalyptic number.

57039686 is a deficient number, since it is larger than the sum of its proper divisors (37263754).

57039686 is a wasteful number, since it uses less digits than its factorization.

57039686 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26839.

The product of its (nonzero) digits is 272160, while the sum is 44.

The square root of 57039686 is about 7552.4622475058. The cubic root of 57039686 is about 384.9394091413.

The spelling of 57039686 in words is "fifty-seven million, thirty-nine thousand, six hundred eighty-six".