23823957 has 4 divisors (see below), whose sum is σ = 31765280. Its totient is φ = 15882636.

The previous prime is 23823949. The next prime is 23823959. The reversal of 23823957 is 75932832.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 23823957 - 2³ = 23823949 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 (23823959) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3970657 + ... + 3970662.

It is an arithmetic number, because the mean of its divisors is an integer number (7941320).

Almost surely, 2^23823957 is an apocalyptic number.

It is an amenable number.

23823957 is a deficient number, since it is larger than the sum of its proper divisors (7941323).

23823957 is an equidigital number, since it uses as much as digits as its factorization.

23823957 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7941322.

The product of its digits is 90720, while the sum is 39.

The square root of 23823957 is about 4880.9791025982. The cubic root of 23823957 is about 287.7429105216.

The spelling of 23823957 in words is "twenty-three million, eight hundred twenty-three thousand, nine hundred fifty-seven".