23791399 has 2 divisors, whose sum is σ = 23791400. Its totient is φ = 23791398.

The previous prime is 23791351. The next prime is 23791423. The reversal of 23791399 is 99319732.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 23791399 - 2⁹ = 23790887 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (23791349) 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 as a sum of consecutive naturals, namely, 11895699 + 11895700.

It is an arithmetic number, because the mean of its divisors is an integer number (11895700).

Almost surely, 2^23791399 is an apocalyptic number.

23791399 is a deficient number, since it is larger than the sum of its proper divisors (1).

23791399 is an equidigital number, since it uses as much as digits as its factorization.

23791399 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 91854, while the sum is 43.

The square root of 23791399 is about 4877.6427708474. The cubic root of 23791399 is about 287.6117735526.

The spelling of 23791399 in words is "twenty-three million, seven hundred ninety-one thousand, three hundred ninety-nine".