13983988 has 12 divisors (see below), whose sum is σ = 24659712. Its totient is φ = 6938360.

The previous prime is 13983971. The next prime is 13984021. The reversal of 13983988 is 88938931.

13983988 is digitally balanced in base 2, because in such base 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 3 ways as a sum of consecutive naturals, for example, 12820 + ... + 13867.

It is an arithmetic number, because the mean of its divisors is an integer number (2054976).

Almost surely, 2^13983988 is an apocalyptic number.

It is an amenable number.

13983988 is a deficient number, since it is larger than the sum of its proper divisors (10675724).

13983988 is a wasteful number, since it uses less digits than its factorization.

13983988 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26822 (or 26820 counting only the distinct ones).

The product of its digits is 373248, while the sum is 49.

The square root of 13983988 is about 3739.5170811216. The cubic root of 13983988 is about 240.9223075610.

The spelling of 13983988 in words is "thirteen million, nine hundred eighty-three thousand, nine hundred eighty-eight".