57866990 has 32 divisors (see below), whose sum is σ = 108755136. Its totient is φ = 22147840.

The previous prime is 57866969. The next prime is 57867013. The reversal of 57866990 is 9966875.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 20399 + ... + 23061.

It is an arithmetic number, because the mean of its divisors is an integer number (3398598).

Almost surely, 2^57866990 is an apocalyptic number.

57866990 is a deficient number, since it is larger than the sum of its proper divisors (50888146).

57866990 is a wasteful number, since it uses less digits than its factorization.

57866990 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2764.

The product of its (nonzero) digits is 816480, while the sum is 50.

The square root of 57866990 is about 7607.0355592701. The cubic root of 57866990 is about 386.7915379822.

The spelling of 57866990 in words is "fifty-seven million, eight hundred sixty-six thousand, nine hundred ninety".