57905982 has 64 divisors (see below), whose sum is σ = 134784000. Its totient is φ = 18404064.

The previous prime is 57905971. The next prime is 57906001. The reversal of 57905982 is 28950975.

It is a happy number.

57905982 is a `hidden beast` number, since 57 + 9 + 0 + 598 + 2 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 161119 + ... + 161477.

It is an arithmetic number, because the mean of its divisors is an integer number (2106000).

Almost surely, 2^57905982 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 57905982, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (67392000).

57905982 is an abundant number, since it is smaller than the sum of its proper divisors (76878018).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

57905982 is a wasteful number, since it uses less digits than its factorization.

57905982 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 502 (or 496 counting only the distinct ones).

The product of its (nonzero) digits is 226800, while the sum is 45.

The square root of 57905982 is about 7609.5980182924. The cubic root of 57905982 is about 386.8783945789.

The spelling of 57905982 in words is "fifty-seven million, nine hundred five thousand, nine hundred eighty-two".