23008439 has 4 divisors (see below), whose sum is σ = 23098224. Its totient is φ = 22918656.

The previous prime is 23008409. The next prime is 23008549. The reversal of 23008439 is 93480032.

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

It is a cyclic number.

It is not a de Polignac number, because 23008439 - 2²⁰ = 21959863 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 (23008409) 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, 44507 + ... + 45020.

It is an arithmetic number, because the mean of its divisors is an integer number (5774556).

Almost surely, 2^23008439 is an apocalyptic number.

23008439 is a deficient number, since it is larger than the sum of its proper divisors (89785).

23008439 is an equidigital number, since it uses as much as digits as its factorization.

23008439 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 89784.

The product of its (nonzero) digits is 5184, while the sum is 29.

The square root of 23008439 is about 4796.7112691927. The cubic root of 23008439 is about 284.4214754617.

The spelling of 23008439 in words is "twenty-three million, eight thousand, four hundred thirty-nine".