23972685 has 16 divisors (see below), whose sum is σ = 41843520. Its totient is φ = 11623040.

The previous prime is 23972621. The next prime is 23972687. The reversal of 23972685 is 58627932.

It is not a de Polignac number, because 23972685 - 2⁶ = 23972621 is a prime.

It is a super-2 number, since 2×23972685² = 1149379252218450, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23972687) 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, 72480 + ... + 72809.

It is an arithmetic number, because the mean of its divisors is an integer number (2615220).

Almost surely, 2^23972685 is an apocalyptic number.

It is an amenable number.

23972685 is a deficient number, since it is larger than the sum of its proper divisors (17870835).

23972685 is a wasteful number, since it uses less digits than its factorization.

23972685 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 145308.

The product of its digits is 181440, while the sum is 42.

The square root of 23972685 is about 4896.1908663777. The cubic root of 23972685 is about 288.3404418338.

The spelling of 23972685 in words is "twenty-three million, nine hundred seventy-two thousand, six hundred eighty-five".