23986 has 8 divisors (see below), whose sum is σ = 36720. Its totient is φ = 11748.

The previous prime is 23981. The next prime is 23993. The reversal of 23986 is 68932.

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

It is not an unprimeable number, because it can be changed into a prime (23981) 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, 45 + ... + 223.

It is an arithmetic number, because the mean of its divisors is an integer number (4590).

2²³⁹⁸⁶ is an apocalyptic number.

23986 is a deficient number, since it is larger than the sum of its proper divisors (12734).

23986 is a wasteful number, since it uses less digits than its factorization.

23986 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 248.

The product of its digits is 2592, while the sum is 28.

The square root of 23986 is about 154.8741424512. The cubic root of 23986 is about 28.8393815669.

It can be divided in two parts, 239 and 86, that added together give a triangular number (325 = T₂₅).

The spelling of 23986 in words is "twenty-three thousand, nine hundred eighty-six".