23872761 has 24 divisors (see below), whose sum is σ = 37791936. Its totient is φ = 14401440.

The previous prime is 23872753. The next prime is 23872787. The reversal of 23872761 is 16727832.

23872761 is a `hidden beast` number, since 2 + 387 + 276 + 1 = 666.

It is not a de Polignac number, because 23872761 - 2³ = 23872753 is a prime.

It is an alternating number because its digits alternate between even and odd.

It is not an unprimeable number, because it can be changed into a prime (23872711) 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 23 ways as a sum of consecutive naturals, for example, 28596 + ... + 29418.

It is an arithmetic number, because the mean of its divisors is an integer number (1574664).

Almost surely, 2^23872761 is an apocalyptic number.

It is an amenable number.

23872761 is a deficient number, since it is larger than the sum of its proper divisors (13919175).

23872761 is a wasteful number, since it uses less digits than its factorization.

23872761 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1133 (or 1130 counting only the distinct ones).

The product of its digits is 28224, while the sum is 36.

The square root of 23872761 is about 4885.9759516395. The cubic root of 23872761 is about 287.9392594705.

Subtracting from 23872761 its reverse (16727832), we obtain a square (7144929 = 2673²).

The spelling of 23872761 in words is "twenty-three million, eight hundred seventy-two thousand, seven hundred sixty-one".