23406287 has 2 divisors, whose sum is σ = 23406288. Its totient is φ = 23406286.

The previous prime is 23406283. The next prime is 23406293. The reversal of 23406287 is 78260432.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 23406287 - 2² = 23406283 is a prime.

It is a super-2 number, since 2×23406287² = 1095708542252738, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (23406281) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11703143 + 11703144.

It is an arithmetic number, because the mean of its divisors is an integer number (11703144).

Almost surely, 2^23406287 is an apocalyptic number.

23406287 is a deficient number, since it is larger than the sum of its proper divisors (1).

23406287 is an equidigital number, since it uses as much as digits as its factorization.

23406287 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 16128, while the sum is 32.

The square root of 23406287 is about 4838.0044439831. The cubic root of 23406287 is about 286.0514643234.

The spelling of 23406287 in words is "twenty-three million, four hundred six thousand, two hundred eighty-seven".