57977090 has 16 divisors (see below), whose sum is σ = 107957880. Its totient is φ = 22391040.

The previous prime is 57977069. The next prime is 57977093. The reversal of 57977090 is 9077975.

It can be written as a sum of positive squares in 4 ways, for example, as 29343889 + 28633201 = 5417^2 + 5351^2 .

It is a super-2 number, since 2×57977090² = 6722685929736200, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (57977093) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 99671 + ... + 100250.

Almost surely, 2^57977090 is an apocalyptic number.

57977090 is a deficient number, since it is larger than the sum of its proper divisors (49980790).

57977090 is a wasteful number, since it uses less digits than its factorization.

57977090 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 199957.

The product of its (nonzero) digits is 138915, while the sum is 44.

The square root of 57977090 is about 7614.2688421148. The cubic root of 57977090 is about 387.0366908083.

The spelling of 57977090 in words is "fifty-seven million, nine hundred seventy-seven thousand, ninety".