23947136 has 32 divisors (see below), whose sum is σ = 48505080. Its totient is φ = 11773440.

The previous prime is 23947129. The next prime is 23947153. The reversal of 23947136 is 63174932.

It is a tau number, because it is divible by the number of its divisors (32).

It is a junction number, because it is equal to n+sod(n) for n = 23947096 and 23947105.

It is a congruent number.

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, 6275 + ... + 9341.

Almost surely, 2^23947136 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 23947136, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (24252540).

23947136 is an abundant number, since it is smaller than the sum of its proper divisors (24557944).

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

23947136 is an equidigital number, since it uses as much as digits as its factorization.

23947136 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3142 (or 3130 counting only the distinct ones).

The product of its digits is 27216, while the sum is 35.

The square root of 23947136 is about 4893.5811018108. The cubic root of 23947136 is about 288.2379720358.

The spelling of 23947136 in words is "twenty-three million, nine hundred forty-seven thousand, one hundred thirty-six".