23378931 has 12 divisors (see below), whose sum is σ = 34682752. Its totient is φ = 15164496.

The previous prime is 23378923. The next prime is 23378939. The reversal of 23378931 is 13987332.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (23378923) and next prime (23378939).

It is not a de Polignac number, because 23378931 - 2³ = 23378923 is a prime.

It is a super-2 number, since 2×23378931² = 1093148829405522, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (23378939) 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, 34771 + ... + 35436.

Almost surely, 2^23378931 is an apocalyptic number.

23378931 is a deficient number, since it is larger than the sum of its proper divisors (11303821).

23378931 is a wasteful number, since it uses less digits than its factorization.

23378931 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 70250 (or 70247 counting only the distinct ones).

The product of its digits is 27216, while the sum is 36.

The square root of 23378931 is about 4835.1764187049. The cubic root of 23378931 is about 285.9399803959.

The spelling of 23378931 in words is "twenty-three million, three hundred seventy-eight thousand, nine hundred thirty-one".