57878164 has 6 divisors (see below), whose sum is σ = 101286794. Its totient is φ = 28939080.

The previous prime is 57878153. The next prime is 57878179. The reversal of 57878164 is 46187875.

57878164 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 53290000 + 4588164 = 7300^2 + 2142^2 .

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7234767 + ... + 7234774.

Almost surely, 2^57878164 is an apocalyptic number.

It is an amenable number.

57878164 is a deficient number, since it is larger than the sum of its proper divisors (43408630).

57878164 is a wasteful number, since it uses less digits than its factorization.

57878164 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14469545 (or 14469543 counting only the distinct ones).

The product of its digits is 376320, while the sum is 46.

The square root of 57878164 is about 7607.7699754922. The cubic root of 57878164 is about 386.8164326039.

The spelling of 57878164 in words is "fifty-seven million, eight hundred seventy-eight thousand, one hundred sixty-four".