23985972 has 18 divisors (see below), whose sum is σ = 60631298. Its totient is φ = 7995312.

The previous prime is 23985947. The next prime is 23985977. The reversal of 23985972 is 27958932.

It can be written as a sum of positive squares in only one way, i.e., 23386896 + 599076 = 4836^2 + 774^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23985977) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 333103 + ... + 333174.

Almost surely, 2^23985972 is an apocalyptic number.

It is an amenable number.

23985972 is an abundant number, since it is smaller than the sum of its proper divisors (36645326).

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

23985972 is a wasteful number, since it uses less digits than its factorization.

23985972 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 666287 (or 666282 counting only the distinct ones).

The product of its digits is 272160, while the sum is 45.

The square root of 23985972 is about 4897.5475495395. The cubic root of 23985972 is about 288.3937034501.

The spelling of 23985972 in words is "twenty-three million, nine hundred eighty-five thousand, nine hundred seventy-two".