23791897 has 2 divisors, whose sum is σ = 23791898. Its totient is φ = 23791896.

The previous prime is 23791883. The next prime is 23791909. The reversal of 23791897 is 79819732.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 14280841 + 9511056 = 3779^2 + 3084^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-23791897 is a prime.

It is not a weakly prime, because it can be changed into another prime (23791837) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11895948 + 11895949.

It is an arithmetic number, because the mean of its divisors is an integer number (11895949).

Almost surely, 2^23791897 is an apocalyptic number.

It is an amenable number.

23791897 is a deficient number, since it is larger than the sum of its proper divisors (1).

23791897 is an equidigital number, since it uses as much as digits as its factorization.

23791897 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 190512, while the sum is 46.

The square root of 23791897 is about 4877.6938198292. The cubic root of 23791897 is about 287.6137802955.

The spelling of 23791897 in words is "twenty-three million, seven hundred ninety-one thousand, eight hundred ninety-seven".