23316813 has 12 divisors (see below), whose sum is σ = 36270780. Its totient is φ = 14348736.

The previous prime is 23316803. The next prime is 23316817. The reversal of 23316813 is 31861332.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 5322249 + 17994564 = 2307^2 + 4242^2 .

It is not a de Polignac number, because 23316813 - 2⁶ = 23316749 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23316817) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 99528 + ... + 99761.

It is an arithmetic number, because the mean of its divisors is an integer number (3022565).

Almost surely, 2^23316813 is an apocalyptic number.

It is an amenable number.

23316813 is a deficient number, since it is larger than the sum of its proper divisors (12953967).

23316813 is a wasteful number, since it uses less digits than its factorization.

23316813 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 199308 (or 199305 counting only the distinct ones).

The product of its digits is 2592, while the sum is 27.

The square root of 23316813 is about 4828.7485956508. The cubic root of 23316813 is about 285.6865075256.

The spelling of 23316813 in words is "twenty-three million, three hundred sixteen thousand, eight hundred thirteen".