57639694 has 16 divisors (see below), whose sum is σ = 101109888. Its totient is φ = 24127992.

The previous prime is 57639691. The next prime is 57639697. The reversal of 57639694 is 49693675.

It is an interprime number because it is at equal distance from previous prime (57639691) and next prime (57639697).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (57639691) 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, 47272 + ... + 48475.

It is an arithmetic number, because the mean of its divisors is an integer number (6319368).

Almost surely, 2^57639694 is an apocalyptic number.

57639694 is a deficient number, since it is larger than the sum of its proper divisors (43470194).

57639694 is a wasteful number, since it uses less digits than its factorization.

57639694 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 95799.

The product of its digits is 1224720, while the sum is 49.

The square root of 57639694 is about 7592.0810058903. The cubic root of 57639694 is about 386.2844467486.

The spelling of 57639694 in words is "fifty-seven million, six hundred thirty-nine thousand, six hundred ninety-four".