13663896 has 32 divisors (see below), whose sum is σ = 34398000. Its totient is φ = 4522880.

The previous prime is 13663883. The next prime is 13663931. The reversal of 13663896 is 69836631.

13663896 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1666 + ... + 5486.

Almost surely, 2^13663896 is an apocalyptic number.

It is an amenable number.

13663896 is an abundant number, since it is smaller than the sum of its proper divisors (20734104).

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

13663896 is a wasteful number, since it uses less digits than its factorization.

13663896 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3979 (or 3975 counting only the distinct ones).

The product of its digits is 139968, while the sum is 42.

The square root of 13663896 is about 3696.4707492418. The cubic root of 13663896 is about 239.0698721380.

The spelling of 13663896 in words is "thirteen million, six hundred sixty-three thousand, eight hundred ninety-six".