13699968 has 32 divisors (see below), whose sum is σ = 36391560. Its totient is φ = 4566528.

The previous prime is 13699957. The next prime is 13699981. The reversal of 13699968 is 86999631.

It is a tau number, because it is divible by the number of its divisors (32).

It is a self number, because there is not a number n which added to its sum of digits gives 13699968.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 17455 + ... + 18222.

Almost surely, 2^13699968 is an apocalyptic number.

It is an amenable number.

13699968 is an abundant number, since it is smaller than the sum of its proper divisors (22691592).

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

13699968 is an equidigital number, since it uses as much as digits as its factorization.

13699968 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35694 (or 35682 counting only the distinct ones).

The product of its digits is 629856, while the sum is 51.

The square root of 13699968 is about 3701.3467819160. The cubic root of 13699968 is about 239.2800647702.

The spelling of 13699968 in words is "thirteen million, six hundred ninety-nine thousand, nine hundred sixty-eight".