12417999 has 16 divisors (see below), whose sum is σ = 18849024. Its totient is φ = 7198400.

The previous prime is 12417967. The next prime is 12418019. The reversal of 12417999 is 99971421.

It is not a de Polignac number, because 12417999 - 2⁵ = 12417967 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 12417999.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12417929) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7422 + ... + 8939.

It is an arithmetic number, because the mean of its divisors is an integer number (1178064).

Almost surely, 2^12417999 is an apocalyptic number.

12417999 is a deficient number, since it is larger than the sum of its proper divisors (6431025).

12417999 is a wasteful number, since it uses less digits than its factorization.

12417999 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16398.

The product of its digits is 40824, while the sum is 42.

The square root of 12417999 is about 3523.9181318527. The cubic root of 12417999 is about 231.5708413331.

The spelling of 12417999 in words is "twelve million, four hundred seventeen thousand, nine hundred ninety-nine".