57628764 has 36 divisors (see below), whose sum is σ = 145923960. Its totient is φ = 19176480.

The previous prime is 57628751. The next prime is 57628787. The reversal of 57628764 is 46782675.

57628764 is a `hidden beast` number, since 576 + 2 + 8 + 76 + 4 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 28879 + ... + 30809.

Almost surely, 2^57628764 is an apocalyptic number.

It is an amenable number.

57628764 is an abundant number, since it is smaller than the sum of its proper divisors (88295196).

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

57628764 is a wasteful number, since it uses less digits than its factorization.

57628764 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2770 (or 2765 counting only the distinct ones).

The product of its digits is 564480, while the sum is 45.

The square root of 57628764 is about 7591.3611427728. The cubic root of 57628764 is about 386.2600286459.

The spelling of 57628764 in words is "fifty-seven million, six hundred twenty-eight thousand, seven hundred sixty-four".