23207856 has 120 divisors (see below), whose sum is σ = 73090560. Its totient is φ = 6214656.

The previous prime is 23207813. The next prime is 23207861. The reversal of 23207856 is 65870232.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 96985 + ... + 97223.

It is an arithmetic number, because the mean of its divisors is an integer number (609088).

Almost surely, 2^23207856 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 23207856, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (36545280).

23207856 is an abundant number, since it is smaller than the sum of its proper divisors (49882704).

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

23207856 is a wasteful number, since it uses less digits than its factorization.

23207856 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 291 (or 268 counting only the distinct ones).

The product of its (nonzero) digits is 20160, while the sum is 33.

The square root of 23207856 is about 4817.4532691039. The cubic root of 23207856 is about 285.2408183097.

The spelling of 23207856 in words is "twenty-three million, two hundred seven thousand, eight hundred fifty-six".