13800685 has 16 divisors (see below), whose sum is σ = 17636400. Its totient is φ = 10331136.

The previous prime is 13800679. The next prime is 13800737. The reversal of 13800685 is 58600831.

It can be written as a sum of positive squares in 8 ways, for example, as 236196 + 13564489 = 486^2 + 3683^2 .

It is a cyclic number.

It is not a de Polignac number, because 13800685 - 2⁵ = 13800653 is a prime.

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, 19111 + ... + 19819.

It is an arithmetic number, because the mean of its divisors is an integer number (1102275).

Almost surely, 2^13800685 is an apocalyptic number.

It is an amenable number.

13800685 is a deficient number, since it is larger than the sum of its proper divisors (3835715).

13800685 is a wasteful number, since it uses less digits than its factorization.

13800685 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 960.

The product of its (nonzero) digits is 5760, while the sum is 31.

The square root of 13800685 is about 3714.9273209580. The cubic root of 13800685 is about 239.8649993074.

The spelling of 13800685 in words is "thirteen million, eight hundred thousand, six hundred eighty-five".