13818685 has 16 divisors (see below), whose sum is σ = 17035200. Its totient is φ = 10757376.

The previous prime is 13818667. The next prime is 13818689. The reversal of 13818685 is 58681831.

It is a cyclic number.

It is not a de Polignac number, because 13818685 - 2¹³ = 13810493 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13818689) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 40837 + ... + 41173.

It is an arithmetic number, because the mean of its divisors is an integer number (1064700).

Almost surely, 2^13818685 is an apocalyptic number.

It is an amenable number.

13818685 is a deficient number, since it is larger than the sum of its proper divisors (3216515).

13818685 is a wasteful number, since it uses less digits than its factorization.

13818685 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 540.

The product of its digits is 46080, while the sum is 40.

The square root of 13818685 is about 3717.3491899471. The cubic root of 13818685 is about 239.9692379554.

The spelling of 13818685 in words is "thirteen million, eight hundred eighteen thousand, six hundred eighty-five".