57797478 has 24 divisors (see below), whose sum is σ = 128613888. Its totient is φ = 18744912.

The previous prime is 57797477. The next prime is 57797503. The reversal of 57797478 is 87479775.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (57797477) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 42726 + ... + 44057.

It is an arithmetic number, because the mean of its divisors is an integer number (5358912).

Almost surely, 2^57797478 is an apocalyptic number.

57797478 is an abundant number, since it is smaller than the sum of its proper divisors (70816410).

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

57797478 is a wasteful number, since it uses less digits than its factorization.

57797478 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 86828 (or 86825 counting only the distinct ones).

The product of its digits is 3457440, while the sum is 54.

The square root of 57797478 is about 7602.4652580594. The cubic root of 57797478 is about 386.6365997561.

The spelling of 57797478 in words is "fifty-seven million, seven hundred ninety-seven thousand, four hundred seventy-eight".