13889696 has 24 divisors (see below), whose sum is σ = 27658260. Its totient is φ = 6865408.

The previous prime is 13889671. The next prime is 13889713. The reversal of 13889696 is 69698831.

It can be written as a sum of positive squares in 2 ways, for example, as 12816400 + 1073296 = 3580^2 + 1036^2 .

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 410 + ... + 5286.

Almost surely, 2^13889696 is an apocalyptic number.

13889696 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

13889696 is a deficient number, since it is larger than the sum of its proper divisors (13768564).

13889696 is an equidigital number, since it uses as much as digits as its factorization.

13889696 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4976 (or 4968 counting only the distinct ones).

The product of its digits is 559872, while the sum is 50.

The square root of 13889696 is about 3726.8882462451. Note that the first 3 decimals coincide. The cubic root of 13889696 is about 240.3795845170.

The spelling of 13889696 in words is "thirteen million, eight hundred eighty-nine thousand, six hundred ninety-six".