23087904 has 192 divisors, whose sum is σ = 76640256. Its totient is φ = 5935104.

The previous prime is 23087899. The next prime is 23087923. The reversal of 23087904 is 40978032.

It is a super-2 number, since 2×23087904² = 1066102622226432, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 491209 + ... + 491255.

It is an arithmetic number, because the mean of its divisors is an integer number (399168).

Almost surely, 2^23087904 is an apocalyptic number.

23087904 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 23087904, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (38320128).

23087904 is an abundant number, since it is smaller than the sum of its proper divisors (53552352).

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

23087904 is a wasteful number, since it uses less digits than its factorization.

23087904 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 127 (or 119 counting only the distinct ones).

The product of its (nonzero) digits is 12096, while the sum is 33.

The square root of 23087904 is about 4804.9874089325. The cubic root of 23087904 is about 284.7485378126.

The spelling of 23087904 in words is "twenty-three million, eighty-seven thousand, nine hundred four".