57639892 has 12 divisors (see below), whose sum is σ = 101869236. Its totient is φ = 28534400.

The previous prime is 57639887. The next prime is 57639893. The reversal of 57639892 is 29893675.

It can be written as a sum of positive squares in 2 ways, for example, as 45778756 + 11861136 = 6766^2 + 3444^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (57639893) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 70933 + ... + 71740.

It is an arithmetic number, because the mean of its divisors is an integer number (8489103).

Almost surely, 2^57639892 is an apocalyptic number.

It is an amenable number.

57639892 is a deficient number, since it is larger than the sum of its proper divisors (44229344).

57639892 is a wasteful number, since it uses less digits than its factorization.

57639892 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 142778 (or 142776 counting only the distinct ones).

The product of its digits is 816480, while the sum is 49.

The square root of 57639892 is about 7592.0940457821. The cubic root of 57639892 is about 386.2848890609.

The spelling of 57639892 in words is "fifty-seven million, six hundred thirty-nine thousand, eight hundred ninety-two".