13683968 has 18 divisors (see below), whose sum is σ = 27314994. Its totient is φ = 6841856.

The previous prime is 13683959. The next prime is 13683973. The reversal of 13683968 is 86938631.

It can be written as a sum of positive squares in only one way, i.e., 12166144 + 1517824 = 3488^2 + 1232^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26471 + ... + 26982.

Almost surely, 2^13683968 is an apocalyptic number.

It is an amenable number.

13683968 is a deficient number, since it is larger than the sum of its proper divisors (13631026).

13683968 is an frugal number, since it uses more digits than its factorization.

13683968 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53469 (or 53455 counting only the distinct ones).

The product of its digits is 186624, while the sum is 44.

The square root of 13683968 is about 3699.1847750552. The cubic root of 13683968 is about 239.1868778758.

The spelling of 13683968 in words is "thirteen million, six hundred eighty-three thousand, nine hundred sixty-eight".