23412287 has 2 divisors, whose sum is σ = 23412288. Its totient is φ = 23412286.

The previous prime is 23412283. The next prime is 23412289. The reversal of 23412287 is 78221432.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 23412287 - 2² = 23412283 is a prime.

Together with 23412289, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (23412283) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11706143 + 11706144.

It is an arithmetic number, because the mean of its divisors is an integer number (11706144).

Almost surely, 2^23412287 is an apocalyptic number.

23412287 is a deficient number, since it is larger than the sum of its proper divisors (1).

23412287 is an equidigital number, since it uses as much as digits as its factorization.

23412287 is an evil number, because the sum of its binary digits is even.

The product of its digits is 5376, while the sum is 29.

The square root of 23412287 is about 4838.6244946265. The cubic root of 23412287 is about 286.0759045112.

It can be divided in two parts, 234 and 12287, that added together give a palindrome (12521).

The spelling of 23412287 in words is "twenty-three million, four hundred twelve thousand, two hundred eighty-seven".