23287312 has 20 divisors (see below), whose sum is σ = 47494480. Its totient is φ = 11030688.

The previous prime is 23287309. The next prime is 23287333. The reversal of 23287312 is 21378232.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 37998 + ... + 38605.

It is an arithmetic number, because the mean of its divisors is an integer number (2374724).

Almost surely, 2^23287312 is an apocalyptic number.

It is an amenable number.

23287312 is an abundant number, since it is smaller than the sum of its proper divisors (24207168).

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

23287312 is a wasteful number, since it uses less digits than its factorization.

23287312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 76630 (or 76624 counting only the distinct ones).

The product of its digits is 4032, while the sum is 28.

The square root of 23287312 is about 4825.6929036150. The cubic root of 23287312 is about 285.5659708323.

The spelling of 23287312 in words is "twenty-three million, two hundred eighty-seven thousand, three hundred twelve".