23072856 has 32 divisors (see below), whose sum is σ = 57984000. Its totient is φ = 7650720.

The previous prime is 23072851. The next prime is 23072869. The reversal of 23072856 is 65827032.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23072851) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2361 + ... + 7191.

It is an arithmetic number, because the mean of its divisors is an integer number (1812000).

Almost surely, 2^23072856 is an apocalyptic number.

It is an amenable number.

23072856 is an abundant number, since it is smaller than the sum of its proper divisors (34911144).

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

23072856 is a wasteful number, since it uses less digits than its factorization.

23072856 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5039 (or 5035 counting only the distinct ones).

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

The square root of 23072856 is about 4803.4212807123. The cubic root of 23072856 is about 284.6866608624.

Adding to 23072856 its reverse (65827032), we get a palindrome (88899888).

The spelling of 23072856 in words is "twenty-three million, seventy-two thousand, eight hundred fifty-six".