13912689 has 16 divisors (see below), whose sum is σ = 21296000. Its totient is φ = 7914240.

The previous prime is 13912669. The next prime is 13912699. The reversal of 13912689 is 98621931.

It is a de Polignac number, because none of the positive numbers 2^k-13912689 is a prime.

It is a Smith number, since the sum of its digits (39) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13912669) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3687 + ... + 6435.

It is an arithmetic number, because the mean of its divisors is an integer number (1331000).

Almost surely, 2^13912689 is an apocalyptic number.

It is an amenable number.

13912689 is a deficient number, since it is larger than the sum of its proper divisors (7383311).

13912689 is a wasteful number, since it uses less digits than its factorization.

13912689 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3000.

The product of its digits is 23328, while the sum is 39.

The square root of 13912689 is about 3729.9717157105. The cubic root of 13912689 is about 240.5121528315.

The spelling of 13912689 in words is "thirteen million, nine hundred twelve thousand, six hundred eighty-nine".