23459987 has 2 divisors, whose sum is σ = 23459988. Its totient is φ = 23459986.

The previous prime is 23459981. The next prime is 23460007. The reversal of 23459987 is 78995432.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 23459987 - 2⁶ = 23459923 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (23459981) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11729993 + 11729994.

It is an arithmetic number, because the mean of its divisors is an integer number (11729994).

Almost surely, 2^23459987 is an apocalyptic number.

23459987 is a deficient number, since it is larger than the sum of its proper divisors (1).

23459987 is an equidigital number, since it uses as much as digits as its factorization.

23459987 is an evil number, because the sum of its binary digits is even.

The product of its digits is 544320, while the sum is 47.

The square root of 23459987 is about 4843.5510733345. The cubic root of 23459987 is about 286.2700556113.

The spelling of 23459987 in words is "twenty-three million, four hundred fifty-nine thousand, nine hundred eighty-seven".