57977397 has 16 divisors (see below), whose sum is σ = 86056000. Its totient is φ = 38578032.

The previous prime is 57977371. The next prime is 57977419. The reversal of 57977397 is 79377975.

It is a happy number.

It is not a de Polignac number, because 57977397 - 2¹¹ = 57975349 is a prime.

It is a super-2 number, since 2×57977397² = 6722757125791218, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (57977357) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 14979 + ... + 18447.

It is an arithmetic number, because the mean of its divisors is an integer number (5378500).

Almost surely, 2^57977397 is an apocalyptic number.

It is an amenable number.

57977397 is a deficient number, since it is larger than the sum of its proper divisors (28078603).

57977397 is a wasteful number, since it uses less digits than its factorization.

57977397 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4097 (or 4091 counting only the distinct ones).

The product of its digits is 2917215, while the sum is 54.

The square root of 57977397 is about 7614.2890016074. The cubic root of 57977397 is about 387.0373739520.

The spelling of 57977397 in words is "fifty-seven million, nine hundred seventy-seven thousand, three hundred ninety-seven".