23809313 has 4 divisors (see below), whose sum is σ = 25973808. Its totient is φ = 21644820.

The previous prime is 23809309. The next prime is 23809339. The reversal of 23809313 is 31390832.

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 a cyclic number.

It is not a de Polignac number, because 23809313 - 2² = 23809309 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (23809343) 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, 1082231 + ... + 1082252.

It is an arithmetic number, because the mean of its divisors is an integer number (6493452).

Almost surely, 2^23809313 is an apocalyptic number.

It is an amenable number.

23809313 is a deficient number, since it is larger than the sum of its proper divisors (2164495).

23809313 is a wasteful number, since it uses less digits than its factorization.

23809313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2164494.

The product of its (nonzero) digits is 3888, while the sum is 29.

The square root of 23809313 is about 4879.4787631467. The cubic root of 23809313 is about 287.6839422762.

The spelling of 23809313 in words is "twenty-three million, eight hundred nine thousand, three hundred thirteen".