23873971 has 4 divisors (see below), whose sum is σ = 26044344. Its totient is φ = 21703600.

The previous prime is 23873959. The next prime is 23873981. The reversal of 23873971 is 17937832.

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 23873971 - 2⁵ = 23873939 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (23873921) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1085170 + ... + 1085191.

It is an arithmetic number, because the mean of its divisors is an integer number (6511086).

Almost surely, 2^23873971 is an apocalyptic number.

23873971 is a deficient number, since it is larger than the sum of its proper divisors (2170373).

23873971 is a wasteful number, since it uses less digits than its factorization.

23873971 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2170372.

The product of its digits is 63504, while the sum is 40.

The square root of 23873971 is about 4886.0997738483. The cubic root of 23873971 is about 287.9441241588.

The spelling of 23873971 in words is "twenty-three million, eight hundred seventy-three thousand, nine hundred seventy-one".