23251939 has 4 divisors (see below), whose sum is σ = 24053760. Its totient is φ = 22450120.

The previous prime is 23251933. The next prime is 23251951. The reversal of 23251939 is 93915232.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 23251939 - 2³ = 23251931 is a prime.

It is not an unprimeable number, because it can be changed into a prime (23251931) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 400867 + ... + 400924.

It is an arithmetic number, because the mean of its divisors is an integer number (6013440).

Almost surely, 2^23251939 is an apocalyptic number.

23251939 is a gapful number since it is divisible by the number (29) formed by its first and last digit.

23251939 is a deficient number, since it is larger than the sum of its proper divisors (801821).

23251939 is an equidigital number, since it uses as much as digits as its factorization.

23251939 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 801820.

The product of its digits is 14580, while the sum is 34.

The square root of 23251939 is about 4822.0264412382. The cubic root of 23251939 is about 285.4213077359.

The spelling of 23251939 in words is "twenty-three million, two hundred fifty-one thousand, nine hundred thirty-nine".