57868381 has 4 divisors (see below), whose sum is σ = 57979552. Its totient is φ = 57757212.

The previous prime is 57868367. The next prime is 57868397. The reversal of 57868381 is 18386875.

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.

It is a cyclic number.

It is not a de Polignac number, because 57868381 - 2¹³ = 57860189 is a prime.

It is a super-2 number, since 2×57868381² = 6697499039122322, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (57868331) 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, 54801 + ... + 55846.

It is an arithmetic number, because the mean of its divisors is an integer number (14494888).

Almost surely, 2^57868381 is an apocalyptic number.

It is an amenable number.

57868381 is a deficient number, since it is larger than the sum of its proper divisors (111171).

57868381 is a wasteful number, since it uses less digits than its factorization.

57868381 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 111170.

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

The square root of 57868381 is about 7607.1269872403. The cubic root of 57868381 is about 386.7946371741.

The spelling of 57868381 in words is "fifty-seven million, eight hundred sixty-eight thousand, three hundred eighty-one".