23321913 has 8 divisors (see below), whose sum is σ = 31118976. Its totient is φ = 15536400.

The previous prime is 23321833. The next prime is 23321939. The reversal of 23321913 is 31912332.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 23321913 - 2⁸ = 23321657 is a prime.

It is a Smith number, since the sum of its digits (24) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (23321213) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4608 + ... + 8238.

It is an arithmetic number, because the mean of its divisors is an integer number (3889872).

Almost surely, 2^23321913 is an apocalyptic number.

It is an amenable number.

23321913 is a deficient number, since it is larger than the sum of its proper divisors (7797063).

23321913 is a wasteful number, since it uses less digits than its factorization.

23321913 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5775.

The product of its digits is 972, while the sum is 24.

The square root of 23321913 is about 4829.2766539100. The cubic root of 23321913 is about 285.7073350571.

The spelling of 23321913 in words is "twenty-three million, three hundred twenty-one thousand, nine hundred thirteen".