57671664 has 20 divisors (see below), whose sum is σ = 148985256. Its totient is φ = 19223872.

The previous prime is 57671651. The next prime is 57671671. The reversal of 57671664 is 46617675.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 600699 + ... + 600794.

Almost surely, 2^57671664 is an apocalyptic number.

It is an amenable number.

57671664 is an abundant number, since it is smaller than the sum of its proper divisors (91313592).

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

57671664 is a wasteful number, since it uses less digits than its factorization.

57671664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1201504 (or 1201498 counting only the distinct ones).

The product of its digits is 211680, while the sum is 42.

The square root of 57671664 is about 7594.1861973486. The cubic root of 57671664 is about 386.3558514258.

The spelling of 57671664 in words is "fifty-seven million, six hundred seventy-one thousand, six hundred sixty-four".