13679685 has 40 divisors (see below), whose sum is σ = 24800160. Its totient is φ = 7243344.

The previous prime is 13679669. The next prime is 13679693. The reversal of 13679685 is 58697631.

It is a happy number.

It is not a de Polignac number, because 13679685 - 2⁴ = 13679669 is a prime.

It is a Smith number, since the sum of its digits (45) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 13679685.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 98346 + ... + 98484.

It is an arithmetic number, because the mean of its divisors is an integer number (620004).

Almost surely, 2^13679685 is an apocalyptic number.

13679685 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

13679685 is a deficient number, since it is larger than the sum of its proper divisors (11120475).

13679685 is an frugal number, since it uses more digits than its factorization.

13679685 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 171 (or 147 counting only the distinct ones).

The product of its digits is 272160, while the sum is 45.

The square root of 13679685 is about 3698.6058184132. The cubic root of 13679685 is about 239.1619205853.

The spelling of 13679685 in words is "thirteen million, six hundred seventy-nine thousand, six hundred eighty-five".