13993976 has 8 divisors (see below), whose sum is σ = 26238720. Its totient is φ = 6996984.

The previous prime is 13993951. The next prime is 13993999. The reversal of 13993976 is 67939931.

It is a tau number, because it is divible by the number of its divisors (8).

It is a self number, because there is not a number n which added to its sum of digits gives 13993976.

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, 874616 + ... + 874631.

It is an arithmetic number, because the mean of its divisors is an integer number (3279840).

Almost surely, 2^13993976 is an apocalyptic number.

It is an amenable number.

13993976 is a deficient number, since it is larger than the sum of its proper divisors (12244744).

13993976 is a wasteful number, since it uses less digits than its factorization.

13993976 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1749253 (or 1749249 counting only the distinct ones).

The product of its digits is 275562, while the sum is 47.

The square root of 13993976 is about 3740.8523093006. The cubic root of 13993976 is about 240.9796531321.

The spelling of 13993976 in words is "thirteen million, nine hundred ninety-three thousand, nine hundred seventy-six".