23307816 has 64 divisors (see below), whose sum is σ = 70519680. Its totient is φ = 6266880.

The previous prime is 23307787. The next prime is 23307821. The reversal of 23307816 is 61870332.

It is an unprimeable number.

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, 1225 + ... + 6936.

It is an arithmetic number, because the mean of its divisors is an integer number (1101870).

Almost surely, 2^23307816 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 23307816, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (35259840).

23307816 is an abundant number, since it is smaller than the sum of its proper divisors (47211864).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

23307816 is a wasteful number, since it uses less digits than its factorization.

23307816 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8194 (or 8190 counting only the distinct ones).

The product of its (nonzero) digits is 6048, while the sum is 30.

The square root of 23307816 is about 4827.8168979364. The cubic root of 23307816 is about 285.6497579039.

The spelling of 23307816 in words is "twenty-three million, three hundred seven thousand, eight hundred sixteen".