23791397 has 16 divisors (see below), whose sum is σ = 28304640. Its totient is φ = 19565952.

The previous prime is 23791351. The next prime is 23791399. The reversal of 23791397 is 79319732.

It is not a de Polignac number, because 23791397 - 2¹⁶ = 23725861 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23791399) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 47048 + ... + 47550.

It is an arithmetic number, because the mean of its divisors is an integer number (1769040).

Almost surely, 2^23791397 is an apocalyptic number.

It is an amenable number.

23791397 is a deficient number, since it is larger than the sum of its proper divisors (4513243).

23791397 is a wasteful number, since it uses less digits than its factorization.

23791397 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 772.

The product of its digits is 71442, while the sum is 41.

The square root of 23791397 is about 4877.6425658303. The cubic root of 23791397 is about 287.6117654933.

The spelling of 23791397 in words is "twenty-three million, seven hundred ninety-one thousand, three hundred ninety-seven".