23332391 has 2 divisors, whose sum is σ = 23332392. Its totient is φ = 23332390.

The previous prime is 23332363. The next prime is 23332417. The reversal of 23332391 is 19323332.

It is an a-pointer prime, because the next prime (23332417) can be obtained adding 23332391 to its sum of digits (26).

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 23332391 - 2¹⁰ = 23331367 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 23332391.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (23332301) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11666195 + 11666196.

It is an arithmetic number, because the mean of its divisors is an integer number (11666196).

Almost surely, 2^23332391 is an apocalyptic number.

23332391 is a deficient number, since it is larger than the sum of its proper divisors (1).

23332391 is an equidigital number, since it uses as much as digits as its factorization.

23332391 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2916, while the sum is 26.

The square root of 23332391 is about 4830.3613736448. The cubic root of 23332391 is about 285.7501158994.

The spelling of 23332391 in words is "twenty-three million, three hundred thirty-two thousand, three hundred ninety-one".