13999208 has 32 divisors (see below), whose sum is σ = 27050760. Its totient is φ = 6789120.

The previous prime is 13999189. The next prime is 13999213. The reversal of 13999208 is 80299931.

13999208 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 13853284 + 145924 = 3722^2 + 382^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 57968 + ... + 58208.

Almost surely, 2^13999208 is an apocalyptic number.

It is an amenable number.

13999208 is a deficient number, since it is larger than the sum of its proper divisors (13051552).

13999208 is a wasteful number, since it uses less digits than its factorization.

13999208 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 437 (or 433 counting only the distinct ones).

The product of its (nonzero) digits is 34992, while the sum is 41.

The square root of 13999208 is about 3741.5515498253. The cubic root of 13999208 is about 241.0096814921.

The spelling of 13999208 in words is "thirteen million, nine hundred ninety-nine thousand, two hundred eight".