23789931 has 12 divisors (see below), whose sum is σ = 34866216. Its totient is φ = 14417920.

The previous prime is 23789923. The next prime is 23789933. The reversal of 23789931 is 13998732.

It is not a de Polignac number, because 23789931 - 2³ = 23789923 is a prime.

It is a super-2 number, since 2×23789931² = 1131921633969522, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (23789933) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 32406 + ... + 33131.

It is an arithmetic number, because the mean of its divisors is an integer number (2905518).

Almost surely, 2^23789931 is an apocalyptic number.

23789931 is a deficient number, since it is larger than the sum of its proper divisors (11076285).

23789931 is a wasteful number, since it uses less digits than its factorization.

23789931 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 65562 (or 65551 counting only the distinct ones).

The product of its digits is 81648, while the sum is 42.

The square root of 23789931 is about 4877.4922860011. The cubic root of 23789931 is about 287.6058579306.

The spelling of 23789931 in words is "twenty-three million, seven hundred eighty-nine thousand, nine hundred thirty-one".