23233391 has 2 divisors, whose sum is σ = 23233392. Its totient is φ = 23233390.

The previous prime is 23233387. The next prime is 23233393. The reversal of 23233391 is 19333232.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 23233391 - 2² = 23233387 is a prime.

Together with 23233393, it forms a pair of twin primes.

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 23233391.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (23233393) 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, 11616695 + 11616696.

It is an arithmetic number, because the mean of its divisors is an integer number (11616696).

Almost surely, 2^23233391 is an apocalyptic number.

23233391 is a deficient number, since it is larger than the sum of its proper divisors (1).

23233391 is an equidigital number, since it uses as much as digits as its factorization.

23233391 is an odious number, because the sum of its binary digits is odd.

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

The square root of 23233391 is about 4820.1027997336. The cubic root of 23233391 is about 285.3453943148.

The spelling of 23233391 in words is "twenty-three million, two hundred thirty-three thousand, three hundred ninety-one".