23791393 has 4 divisors (see below), whose sum is σ = 23803780. Its totient is φ = 23779008.

The previous prime is 23791351. The next prime is 23791399. The reversal of 23791393 is 39319732.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 18809569 + 4981824 = 4337^2 + 2232^2 .

It is a cyclic number.

It is not a de Polignac number, because 23791393 - 2⁹ = 23790881 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (23791399) 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 in 3 ways as a sum of consecutive naturals, for example, 2628 + ... + 7381.

It is an arithmetic number, because the mean of its divisors is an integer number (5950945).

Almost surely, 2^23791393 is an apocalyptic number.

It is an amenable number.

23791393 is a deficient number, since it is larger than the sum of its proper divisors (12387).

23791393 is a wasteful number, since it uses less digits than its factorization.

23791393 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12386.

The product of its digits is 30618, while the sum is 37.

The square root of 23791393 is about 4877.6421557962. The cubic root of 23791393 is about 287.6117493748.

The spelling of 23791393 in words is "twenty-three million, seven hundred ninety-one thousand, three hundred ninety-three".