23398231 has 2 divisors, whose sum is σ = 23398232. Its totient is φ = 23398230.

The previous prime is 23398229. The next prime is 23398237. The reversal of 23398231 is 13289332.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 23398231 - 2¹ = 23398229 is a prime.

It is a super-2 number, since 2×23398231² = 1094954427858722, which contains 22 as substring.

Together with 23398229, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 23398193 and 23398202.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (23398237) 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, 11699115 + 11699116.

It is an arithmetic number, because the mean of its divisors is an integer number (11699116).

Almost surely, 2^23398231 is an apocalyptic number.

23398231 is a deficient number, since it is larger than the sum of its proper divisors (1).

23398231 is an equidigital number, since it uses as much as digits as its factorization.

23398231 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 7776, while the sum is 31.

The square root of 23398231 is about 4837.1717976520. The cubic root of 23398231 is about 286.0186427282.

The spelling of 23398231 in words is "twenty-three million, three hundred ninety-eight thousand, two hundred thirty-one".