13023999 has 12 divisors (see below), whose sum is σ = 19419712. Its totient is φ = 8402400.

The previous prime is 13023991. The next prime is 13024007. The reversal of 13023999 is 99932031.

It is an interprime number because it is at equal distance from previous prime (13023991) and next prime (13024007).

It is not a de Polignac number, because 13023999 - 2³ = 13023991 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13023991) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 23062 + ... + 23619.

Almost surely, 2^13023999 is an apocalyptic number.

13023999 is a deficient number, since it is larger than the sum of its proper divisors (6395713).

13023999 is a wasteful number, since it uses less digits than its factorization.

13023999 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46718 (or 46715 counting only the distinct ones).

The product of its (nonzero) digits is 13122, while the sum is 36.

The square root of 13023999 is about 3608.8778034176. The cubic root of 13023999 is about 235.2780713163.

The spelling of 13023999 in words is "thirteen million, twenty-three thousand, nine hundred ninety-nine".