23972651 has 4 divisors (see below), whose sum is σ = 24028704. Its totient is φ = 23916600.

The previous prime is 23972621. The next prime is 23972687. The reversal of 23972651 is 15627932.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 23972651 - 2⁶ = 23972587 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (23972621) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 27380 + ... + 28241.

It is an arithmetic number, because the mean of its divisors is an integer number (6007176).

Almost surely, 2^23972651 is an apocalyptic number.

23972651 is a deficient number, since it is larger than the sum of its proper divisors (56053).

23972651 is an equidigital number, since it uses as much as digits as its factorization.

23972651 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56052.

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

The square root of 23972651 is about 4896.1873942896. The cubic root of 23972651 is about 288.3403055178.

The spelling of 23972651 in words is "twenty-three million, nine hundred seventy-two thousand, six hundred fifty-one".