23948391 has 4 divisors (see below), whose sum is σ = 31931192. Its totient is φ = 15965592.

The previous prime is 23948383. The next prime is 23948423. The reversal of 23948391 is 19384932.

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

It is not a de Polignac number, because 23948391 - 2³ = 23948383 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23948321) 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, 3991396 + ... + 3991401.

It is an arithmetic number, because the mean of its divisors is an integer number (7982798).

Almost surely, 2^23948391 is an apocalyptic number.

23948391 is a deficient number, since it is larger than the sum of its proper divisors (7982801).

23948391 is an equidigital number, since it uses as much as digits as its factorization.

23948391 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7982800.

The product of its digits is 46656, while the sum is 39.

The square root of 23948391 is about 4893.7093293329. The cubic root of 23948391 is about 288.2430071868.

The spelling of 23948391 in words is "twenty-three million, nine hundred forty-eight thousand, three hundred ninety-one".