23928831 has 16 divisors (see below), whose sum is σ = 35714400. Its totient is φ = 15833664.

The previous prime is 23928829. The next prime is 23928859. The reversal of 23928831 is 13882932.

It is a happy number.

It is not a de Polignac number, because 23928831 - 2¹ = 23928829 is a prime.

It is a super-2 number, since 2×23928831² = 1145177906053122, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23928031) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 465 + ... + 6933.

It is an arithmetic number, because the mean of its divisors is an integer number (2232150).

Almost surely, 2^23928831 is an apocalyptic number.

23928831 is a deficient number, since it is larger than the sum of its proper divisors (11785569).

23928831 is a wasteful number, since it uses less digits than its factorization.

23928831 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6615 (or 6609 counting only the distinct ones).

The product of its digits is 20736, while the sum is 36.

The square root of 23928831 is about 4891.7104370557. The cubic root of 23928831 is about 288.1645110450.

The spelling of 23928831 in words is "twenty-three million, nine hundred twenty-eight thousand, eight hundred thirty-one".