23992 has 8 divisors (see below), whose sum is σ = 45000. Its totient is φ = 11992.

The previous prime is 23981. The next prime is 23993. The reversal of 23992 is 29932.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23993) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1492 + ... + 1507.

It is an arithmetic number, because the mean of its divisors is an integer number (5625).

2²³⁹⁹² is an apocalyptic number.

It is an amenable number.

23992 is a deficient number, since it is larger than the sum of its proper divisors (21008).

23992 is a wasteful number, since it uses less digits than its factorization.

23992 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3005 (or 3001 counting only the distinct ones).

The product of its digits is 972, while the sum is 25.

The square root of 23992 is about 154.8935118073. The cubic root of 23992 is about 28.8417860509.

Adding to 23992 its product of digits (972), we get a square (24964 = 158²).

It can be divided in two parts, 2399 and 2, that added together give a 4-th power (2401 = 7⁴).

The spelling of 23992 in words is "twenty-three thousand, nine hundred ninety-two".