13684990 has 32 divisors (see below), whose sum is σ = 27454464. Its totient is φ = 4868640.

The previous prime is 13684961. The next prime is 13685003. The reversal of 13684990 is 9948631.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3847 + ... + 6493.

It is an arithmetic number, because the mean of its divisors is an integer number (857952).

Almost surely, 2^13684990 is an apocalyptic number.

13684990 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

13684990 is an abundant number, since it is smaller than the sum of its proper divisors (13769474).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

13684990 is a wasteful number, since it uses less digits than its factorization.

13684990 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2712.

The product of its (nonzero) digits is 46656, while the sum is 40.

The square root of 13684990 is about 3699.3229110203. The cubic root of 13684990 is about 239.1928323598.

The spelling of 13684990 in words is "thirteen million, six hundred eighty-four thousand, nine hundred ninety".