57777897 has 16 divisors (see below), whose sum is σ = 80414208. Its totient is φ = 36865920.

The previous prime is 57777887. The next prime is 57777901. The reversal of 57777897 is 79877775.

It is not a de Polignac number, because 57777897 - 2⁶ = 57777833 is a prime.

It is not an unprimeable number, because it can be changed into a prime (57777827) 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, 2088 + ... + 10950.

It is an arithmetic number, because the mean of its divisors is an integer number (5025888).

Almost surely, 2^57777897 is an apocalyptic number.

It is an amenable number.

57777897 is a deficient number, since it is larger than the sum of its proper divisors (22636311).

57777897 is a wasteful number, since it uses less digits than its factorization.

57777897 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8960.

The product of its digits is 6050520, while the sum is 57.

The square root of 57777897 is about 7601.1773430173. The cubic root of 57777897 is about 386.5929324161.

The spelling of 57777897 in words is "fifty-seven million, seven hundred seventy-seven thousand, eight hundred ninety-seven".