23930091 has 6 divisors (see below), whose sum is σ = 34565700. Its totient is φ = 15953388.

The previous prime is 23930087. The next prime is 23930129. The reversal of 23930091 is 19003932.

It is not a de Polignac number, because 23930091 - 2² = 23930087 is a prime.

It is not an unprimeable number, because it can be changed into a prime (23932091) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1329441 + ... + 1329458.

It is an arithmetic number, because the mean of its divisors is an integer number (5760950).

Almost surely, 2^23930091 is an apocalyptic number.

23930091 is a deficient number, since it is larger than the sum of its proper divisors (10635609).

23930091 is a wasteful number, since it uses less digits than its factorization.

23930091 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2658905 (or 2658902 counting only the distinct ones).

The product of its (nonzero) digits is 1458, while the sum is 27.

The square root of 23930091 is about 4891.8392246680. The cubic root of 23930091 is about 288.1695688337.

The spelling of 23930091 in words is "twenty-three million, nine hundred thirty thousand, ninety-one".