23923 has 4 divisors (see below), whose sum is σ = 24480. Its totient is φ = 23368.

The previous prime is 23917. The next prime is 23929. The reversal of 23923 is 32932.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (23917) and next prime (23929).

It is a cyclic number.

It is not a de Polignac number, because 23923 - 2¹³ = 15731 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 23923.

It is not an unprimeable number, because it can be changed into a prime (23929) 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, 208 + ... + 301.

It is an arithmetic number, because the mean of its divisors is an integer number (6120).

2²³⁹²³ is an apocalyptic number.

23923 is a deficient number, since it is larger than the sum of its proper divisors (557).

23923 is an equidigital number, since it uses as much as digits as its factorization.

23923 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 556.

The product of its digits is 324, while the sum is 19.

The square root of 23923 is about 154.6706177656. The cubic root of 23923 is about 28.8141102411.

Subtracting 23923 from its reverse (32932), we obtain a palindrome (9009).

It can be divided in two parts, 239 and 23, that added together give a palindrome (262).

The spelling of 23923 in words is "twenty-three thousand, nine hundred twenty-three".