57806838 has 16 divisors (see below), whose sum is σ = 128459760. Its totient is φ = 19268928.

The previous prime is 57806813. The next prime is 57806869. The reversal of 57806838 is 83860875.

It is a junction number, because it is equal to n+sod(n) for n = 57806793 and 57806802.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 535195 + ... + 535302.

It is an arithmetic number, because the mean of its divisors is an integer number (8028735).

Almost surely, 2^57806838 is an apocalyptic number.

57806838 is an abundant number, since it is smaller than the sum of its proper divisors (70652922).

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

57806838 is a wasteful number, since it uses less digits than its factorization.

57806838 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1070508 (or 1070502 counting only the distinct ones).

The product of its (nonzero) digits is 322560, while the sum is 45.

The square root of 57806838 is about 7603.0808229296. The cubic root of 57806838 is about 386.6574698896.

The spelling of 57806838 in words is "fifty-seven million, eight hundred six thousand, eight hundred thirty-eight".