13579685 has 32 divisors (see below), whose sum is σ = 20424960. Its totient is φ = 8451072.

The previous prime is 13579681. The next prime is 13579697. The reversal of 13579685 is 58697531.

It is not a de Polignac number, because 13579685 - 2² = 13579681 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13579681) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 16862 + ... + 17648.

It is an arithmetic number, because the mean of its divisors is an integer number (638280).

Almost surely, 2^13579685 is an apocalyptic number.

It is an amenable number.

13579685 is a deficient number, since it is larger than the sum of its proper divisors (6845275).

13579685 is a wasteful number, since it uses less digits than its factorization.

13579685 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 845.

The product of its digits is 226800, while the sum is 44.

The square root of 13579685 is about 3685.0624146682. The cubic root of 13579685 is about 238.5777281239.

The spelling of 13579685 in words is "thirteen million, five hundred seventy-nine thousand, six hundred eighty-five".