23672736 has 60 divisors (see below), whose sum is σ = 69628482. Its totient is φ = 7890048.

The previous prime is 23672647. The next prime is 23672743. The reversal of 23672736 is 63727632.

It can be written as a sum of positive squares in only one way, i.e., 17139600 + 6533136 = 4140^2 + 2556^2 .

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a zygodrome in base 3.

It is a self number, because there is not a number n which added to its sum of digits gives 23672736.

It is an unprimeable number.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 1975 + ... + 7158.

Almost surely, 2^23672736 is an apocalyptic number.

It is an amenable number.

23672736 is an abundant number, since it is smaller than the sum of its proper divisors (45955746).

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

23672736 is an equidigital number, since it uses as much as digits as its factorization.

23672736 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9155 (or 9138 counting only the distinct ones).

The product of its digits is 63504, while the sum is 36.

The square root of 23672736 is about 4865.4635955888. The cubic root of 23672736 is about 287.1328081007.

The spelling of 23672736 in words is "twenty-three million, six hundred seventy-two thousand, seven hundred thirty-six".