57683881 has 4 divisors (see below), whose sum is σ = 57699072. Its totient is φ = 57668692.

The previous prime is 57683861. The next prime is 57683891. The reversal of 57683881 is 18838675.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 57683881 - 2¹³ = 57675689 is a prime.

It is a super-2 number, since 2×57683881² = 6654860254444322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (57683831) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3780 + ... + 11386.

It is an arithmetic number, because the mean of its divisors is an integer number (14424768).

Almost surely, 2^57683881 is an apocalyptic number.

It is an amenable number.

57683881 is a deficient number, since it is larger than the sum of its proper divisors (15191).

57683881 is an equidigital number, since it uses as much as digits as its factorization.

57683881 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15190.

The product of its digits is 322560, while the sum is 46.

The square root of 57683881 is about 7594.9905200731. The cubic root of 57683881 is about 386.3831310050.

It can be divided in two parts, 57683 and 881, that added together give a square (58564 = 242²).

The spelling of 57683881 in words is "fifty-seven million, six hundred eighty-three thousand, eight hundred eighty-one".