13978876 has 6 divisors (see below), whose sum is σ = 24463040. Its totient is φ = 6989436.

The previous prime is 13978849. The next prime is 13978897. The reversal of 13978876 is 67887931.

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, 1747356 + ... + 1747363.

Almost surely, 2^13978876 is an apocalyptic number.

It is an amenable number.

13978876 is a deficient number, since it is larger than the sum of its proper divisors (10484164).

13978876 is a wasteful number, since it uses less digits than its factorization.

13978876 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3494723 (or 3494721 counting only the distinct ones).

The product of its digits is 508032, while the sum is 49.

The square root of 13978876 is about 3738.8335079273. The cubic root of 13978876 is about 240.8929467201.

The spelling of 13978876 in words is "thirteen million, nine hundred seventy-eight thousand, eight hundred seventy-six".