13999337 has 12 divisors (see below), whose sum is σ = 15525888. Its totient is φ = 12612600.

The previous prime is 13999309. The next prime is 13999351. The reversal of 13999337 is 73399931.

It is a happy number.

It is not a de Polignac number, because 13999337 - 2⁶ = 13999273 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13999397) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 14912 + ... + 15822.

It is an arithmetic number, because the mean of its divisors is an integer number (1293824).

Almost surely, 2^13999337 is an apocalyptic number.

It is an amenable number.

13999337 is a deficient number, since it is larger than the sum of its proper divisors (1526551).

13999337 is a wasteful number, since it uses less digits than its factorization.

13999337 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1060 (or 1049 counting only the distinct ones).

The product of its digits is 137781, while the sum is 44.

The square root of 13999337 is about 3741.5687886233. The cubic root of 13999337 is about 241.0104217757.

The spelling of 13999337 in words is "thirteen million, nine hundred ninety-nine thousand, three hundred thirty-seven".