13999828 has 12 divisors (see below), whose sum is σ = 24544800. Its totient is φ = 6987032.

The previous prime is 13999813. The next prime is 13999831. The reversal of 13999828 is 82899931.

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, 526 + ... + 5317.

It is an arithmetic number, because the mean of its divisors is an integer number (2045400).

Almost surely, 2^13999828 is an apocalyptic number.

It is an amenable number.

13999828 is a deficient number, since it is larger than the sum of its proper divisors (10544972).

13999828 is a wasteful number, since it uses less digits than its factorization.

13999828 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6446 (or 6444 counting only the distinct ones).

The product of its digits is 279936, while the sum is 49.

The square root of 13999828 is about 3741.6344022365. The cubic root of 13999828 is about 241.0132394028.

The spelling of 13999828 in words is "thirteen million, nine hundred ninety-nine thousand, eight hundred twenty-eight".