13990835 has 4 divisors (see below), whose sum is σ = 16789008. Its totient is φ = 11192664.

The previous prime is 13990807. The next prime is 13990841. The reversal of 13990835 is 53809931.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 53809931 = 7 ⋅7687133.

It is a cyclic number.

It is not a de Polignac number, because 13990835 - 2¹⁴ = 13974451 is a prime.

It is a Duffinian 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, 1399079 + ... + 1399088.

It is an arithmetic number, because the mean of its divisors is an integer number (4197252).

Almost surely, 2^13990835 is an apocalyptic number.

13990835 is a deficient number, since it is larger than the sum of its proper divisors (2798173).

13990835 is an equidigital number, since it uses as much as digits as its factorization.

13990835 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2798172.

The product of its (nonzero) digits is 29160, while the sum is 38.

The square root of 13990835 is about 3740.4324616279. The cubic root of 13990835 is about 240.9616221896.

The spelling of 13990835 in words is "thirteen million, nine hundred ninety thousand, eight hundred thirty-five".