57923931 has 16 divisors (see below), whose sum is σ = 83578880. Its totient is φ = 35471520.

The previous prime is 57923927. The next prime is 57923993. The reversal of 57923931 is 13932975.

It is not a de Polignac number, because 57923931 - 2² = 57923927 is a prime.

It is a super-2 number, since 2×57923931² = 6710363564985522, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 57923931.

It is not an unprimeable number, because it can be changed into a prime (57923231) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4710 + ... + 11748.

It is an arithmetic number, because the mean of its divisors is an integer number (5223680).

Almost surely, 2^57923931 is an apocalyptic number.

57923931 is a deficient number, since it is larger than the sum of its proper divisors (25654949).

57923931 is a wasteful number, since it uses less digits than its factorization.

57923931 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7266.

The product of its digits is 51030, while the sum is 39.

The square root of 57923931 is about 7610.7772927606. Note that the first 3 decimals coincide. The cubic root of 57923931 is about 386.9183637537.

The spelling of 57923931 in words is "fifty-seven million, nine hundred twenty-three thousand, nine hundred thirty-one".