13999833 has 12 divisors (see below), whose sum is σ = 20294820. Its totient is φ = 9299616.

The previous prime is 13999831. The next prime is 13999871. The reversal of 13999833 is 33899931.

It can be written as a sum of positive squares in 2 ways, for example, as 5774409 + 8225424 = 2403^2 + 2868^2 .

It is not a de Polignac number, because 13999833 - 2¹ = 13999831 is a prime.

It is not an unprimeable number, because it can be changed into a prime (13999831) 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, 18 + ... + 5291.

It is an arithmetic number, because the mean of its divisors is an integer number (1691235).

Almost surely, 2^13999833 is an apocalyptic number.

It is an amenable number.

13999833 is a deficient number, since it is larger than the sum of its proper divisors (6294987).

13999833 is a wasteful number, since it uses less digits than its factorization.

13999833 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5608 (or 5605 counting only the distinct ones).

The product of its digits is 157464, while the sum is 45.

The square root of 13999833 is about 3741.6350703937. The cubic root of 13999833 is about 241.0132680952.

The spelling of 13999833 in words is "thirteen million, nine hundred ninety-nine thousand, eight hundred thirty-three".