57986 has 8 divisors (see below), whose sum is σ = 88320. Its totient is φ = 28548.

The previous prime is 57977. The next prime is 57991. The reversal of 57986 is 68975.

57986 is nontrivially palindromic in base 9.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a plaindrome in base 15.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 26 + ... + 341.

It is an arithmetic number, because the mean of its divisors is an integer number (11040).

2⁵⁷⁹⁸⁶ is an apocalyptic number.

57986 is a deficient number, since it is larger than the sum of its proper divisors (30334).

57986 is a wasteful number, since it uses less digits than its factorization.

57986 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 448.

The product of its digits is 15120, while the sum is 35.

The square root of 57986 is about 240.8028239037. The cubic root of 57986 is about 38.7056516572.

It can be divided in two parts, 579 and 86, that multiplied together give a palindrome (49794).

The spelling of 57986 in words is "fifty-seven thousand, nine hundred eighty-six".