13863984 has 20 divisors (see below), whose sum is σ = 35815416. Its totient is φ = 4621312.

The previous prime is 13863979. The next prime is 13864021. The reversal of 13863984 is 48936831.

It is a happy 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, 144369 + ... + 144464.

Almost surely, 2^13863984 is an apocalyptic number.

It is an amenable number.

13863984 is an abundant number, since it is smaller than the sum of its proper divisors (21951432).

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

13863984 is a wasteful number, since it uses less digits than its factorization.

13863984 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 288844 (or 288838 counting only the distinct ones).

The product of its digits is 124416, while the sum is 42.

The square root of 13863984 is about 3723.4371218002. The cubic root of 13863984 is about 240.2311661599.

The spelling of 13863984 in words is "thirteen million, eight hundred sixty-three thousand, nine hundred eighty-four".