23561972 has 24 divisors (see below), whose sum is σ = 47226816. Its totient is φ = 10075968.

The previous prime is 23561947. The next prime is 23561999. The reversal of 23561972 is 27916532.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 24248 + ... + 25200.

It is an arithmetic number, because the mean of its divisors is an integer number (1967784).

Almost surely, 2^23561972 is an apocalyptic number.

It is an amenable number.

23561972 is an abundant number, since it is smaller than the sum of its proper divisors (23664844).

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

23561972 is a wasteful number, since it uses less digits than its factorization.

23561972 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1847 (or 1845 counting only the distinct ones).

The product of its digits is 22680, while the sum is 35.

The square root of 23561972 is about 4854.0675726652. The cubic root of 23561972 is about 286.6842793097.

The spelling of 23561972 in words is "twenty-three million, five hundred sixty-one thousand, nine hundred seventy-two".