23929213 has 16 divisors (see below), whose sum is σ = 30081024. Its totient is φ = 18491760.

The previous prime is 23929207. The next prime is 23929231. The reversal of 23929213 is 31292932.

It is a happy number.

It is not a de Polignac number, because 23929213 - 2⁹ = 23928701 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23929253) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8556 + ... + 11002.

It is an arithmetic number, because the mean of its divisors is an integer number (1880064).

Almost surely, 2^23929213 is an apocalyptic number.

It is an amenable number.

23929213 is a deficient number, since it is larger than the sum of its proper divisors (6151811).

23929213 is a wasteful number, since it uses less digits than its factorization.

23929213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2592.

The product of its digits is 5832, while the sum is 31.

The square root of 23929213 is about 4891.7494825471. The cubic root of 23929213 is about 288.1660444568.

It can be divided in two parts, 23929 and 213, that added together give a palindrome (24142).

The spelling of 23929213 in words is "twenty-three million, nine hundred twenty-nine thousand, two hundred thirteen".