13386999 has 16 divisors (see below), whose sum is σ = 18284544. Its totient is φ = 8709600.

The previous prime is 13386991. The next prime is 13387043. The reversal of 13386999 is 99968331.

It is a happy number.

It is not a de Polignac number, because 13386999 - 2³ = 13386991 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13386991) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 34762 + ... + 35144.

It is an arithmetic number, because the mean of its divisors is an integer number (1142784).

Almost surely, 2^13386999 is an apocalyptic number.

13386999 is a deficient number, since it is larger than the sum of its proper divisors (4897545).

13386999 is a wasteful number, since it uses less digits than its factorization.

13386999 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 638.

The product of its digits is 314928, while the sum is 48.

The square root of 13386999 is about 3658.8248113295. The cubic root of 13386999 is about 237.4439328409.

The spelling of 13386999 in words is "thirteen million, three hundred eighty-six thousand, nine hundred ninety-nine".