23791957 has 4 divisors (see below), whose sum is σ = 27190816. Its totient is φ = 20393100.

The previous prime is 23791951. The next prime is 23791961. The reversal of 23791957 is 75919732.

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 23791957 - 2⁷ = 23791829 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 (23791951) 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, 1699419 + ... + 1699432.

It is an arithmetic number, because the mean of its divisors is an integer number (6797704).

Almost surely, 2^23791957 is an apocalyptic number.

It is an amenable number.

23791957 is a deficient number, since it is larger than the sum of its proper divisors (3398859).

23791957 is an equidigital number, since it uses as much as digits as its factorization.

23791957 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3398858.

The product of its digits is 119070, while the sum is 43.

The square root of 23791957 is about 4877.6999702729. The cubic root of 23791957 is about 287.6140220698.

The spelling of 23791957 in words is "twenty-three million, seven hundred ninety-one thousand, nine hundred fifty-seven".