23916 has 12 divisors (see below), whose sum is σ = 55832. Its totient is φ = 7968.

The previous prime is 23911. The next prime is 23917. The reversal of 23916 is 61932.

It is a tau number, because it is divible by the number of its divisors (12).

It is a junction number, because it is equal to n+sod(n) for n = 23892 and 23901.

It is not an unprimeable number, because it can be changed into a prime (23911) 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, 985 + ... + 1008.

2²³⁹¹⁶ is an apocalyptic number.

It is an amenable number.

23916 is an abundant number, since it is smaller than the sum of its proper divisors (31916).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

It is a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (27916).

23916 is a wasteful number, since it uses less digits than its factorization.

23916 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2000 (or 1998 counting only the distinct ones).

The product of its digits is 324, while the sum is 21.

The square root of 23916 is about 154.6479873778. The cubic root of 23916 is about 28.8112995784.

It can be divided in two parts, 23 and 916, that added together give a palindrome (939).

The spelling of 23916 in words is "twenty-three thousand, nine hundred sixteen".