57977970 has 16 divisors (see below), whose sum is σ = 139147200. Its totient is φ = 15460784.

The previous prime is 57977923. The next prime is 57977971. The reversal of 57977970 is 7977975.

It is a happy number.

It is a super-2 number, since 2×57977970² = 6722890010641800, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (57977971) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 966270 + ... + 966329.

It is an arithmetic number, because the mean of its divisors is an integer number (8696700).

Almost surely, 2^57977970 is an apocalyptic number.

57977970 is an abundant number, since it is smaller than the sum of its proper divisors (81169230).

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

57977970 is a wasteful number, since it uses less digits than its factorization.

57977970 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1932609.

The product of its (nonzero) digits is 972405, while the sum is 51.

The square root of 57977970 is about 7614.3266281399. The cubic root of 57977970 is about 387.0386489988.

The spelling of 57977970 in words is "fifty-seven million, nine hundred seventy-seven thousand, nine hundred seventy".