23605813 has 16 divisors (see below), whose sum is σ = 29702016. Its totient is φ = 18224640.

The previous prime is 23605801. The next prime is 23605819. The reversal of 23605813 is 31850632.

It is not a de Polignac number, because 23605813 - 2⁹ = 23605301 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 (23605819) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7345 + ... + 10057.

It is an arithmetic number, because the mean of its divisors is an integer number (1856376).

Almost surely, 2^23605813 is an apocalyptic number.

It is an amenable number.

23605813 is a deficient number, since it is larger than the sum of its proper divisors (6096203).

23605813 is a wasteful number, since it uses less digits than its factorization.

23605813 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2844.

The product of its (nonzero) digits is 4320, while the sum is 28.

The square root of 23605813 is about 4858.5813773158. The cubic root of 23605813 is about 286.8619772015.

The spelling of 23605813 in words is "twenty-three million, six hundred five thousand, eight hundred thirteen".