23547972 has 48 divisors (see below), whose sum is σ = 64827392. Its totient is φ = 6510240.

The previous prime is 23547967. The next prime is 23547977. The reversal of 23547972 is 27974532.

It is an interprime number because it is at equal distance from previous prime (23547967) and next prime (23547977).

It is a self number, because there is not a number n which added to its sum of digits gives 23547972.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23547977) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1918 + ... + 7125.

Almost surely, 2^23547972 is an apocalyptic number.

It is an amenable number.

23547972 is an abundant number, since it is smaller than the sum of its proper divisors (41279420).

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

23547972 is a wasteful number, since it uses less digits than its factorization.

23547972 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9088 (or 9086 counting only the distinct ones).

The product of its digits is 105840, while the sum is 39.

The square root of 23547972 is about 4852.6252688622. The cubic root of 23547972 is about 286.6274875847.

The spelling of 23547972 in words is "twenty-three million, five hundred forty-seven thousand, nine hundred seventy-two".