23239317 has 4 divisors (see below), whose sum is σ = 30985760. Its totient is φ = 15492876.

The previous prime is 23239303. The next prime is 23239319. The reversal of 23239317 is 71393232.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 23239317 - 2⁸ = 23239061 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 (23239319) 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, 3873217 + ... + 3873222.

It is an arithmetic number, because the mean of its divisors is an integer number (7746440).

Almost surely, 2^23239317 is an apocalyptic number.

It is an amenable number.

23239317 is a deficient number, since it is larger than the sum of its proper divisors (7746443).

23239317 is an equidigital number, since it uses as much as digits as its factorization.

23239317 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7746442.

The product of its digits is 6804, while the sum is 30.

The square root of 23239317 is about 4820.7174777205. The cubic root of 23239317 is about 285.3696526916.

The spelling of 23239317 in words is "twenty-three million, two hundred thirty-nine thousand, three hundred seventeen".