13689912 has 16 divisors (see below), whose sum is σ = 34224840. Its totient is φ = 4563296.

The previous prime is 13689911. The next prime is 13689931. The reversal of 13689912 is 21998631.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13689911) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 285183 + ... + 285230.

Almost surely, 2^13689912 is an apocalyptic number.

13689912 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

13689912 is an abundant number, since it is smaller than the sum of its proper divisors (20534928).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

13689912 is a wasteful number, since it uses less digits than its factorization.

13689912 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 570422 (or 570418 counting only the distinct ones).

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

The square root of 13689912 is about 3699.9881080890. The cubic root of 13689912 is about 239.2215052831.

The spelling of 13689912 in words is "thirteen million, six hundred eighty-nine thousand, nine hundred twelve".