23117072 has 80 divisors (see below), whose sum is σ = 53329920. Its totient is φ = 9590400.

The previous prime is 23117051. The next prime is 23117099. The reversal of 23117072 is 27071132.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 103553 + ... + 103775.

It is an arithmetic number, because the mean of its divisors is an integer number (666624).

Almost surely, 2^23117072 is an apocalyptic number.

23117072 is a gapful number since it is divisible by the number (22) 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 23117072, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (26664960).

23117072 is an abundant number, since it is smaller than the sum of its proper divisors (30212848).

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

23117072 is a wasteful number, since it uses less digits than its factorization.

23117072 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 292 (or 286 counting only the distinct ones).

The product of its (nonzero) digits is 588, while the sum is 23.

The square root of 23117072 is about 4808.0216305670. The cubic root of 23117072 is about 284.8683992808.

The spelling of 23117072 in words is "twenty-three million, one hundred seventeen thousand, seventy-two".