13683569 has 4 divisors (see below), whose sum is σ = 13701744. Its totient is φ = 13665396.

The previous prime is 13683559. The next prime is 13683583. The reversal of 13683569 is 96538631.

13683569 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-13683569 is a prime.

It is a super-2 number, since 2×13683569² = 374480121155522, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13683529) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7907 + ... + 9480.

It is an arithmetic number, because the mean of its divisors is an integer number (3425436).

Almost surely, 2^13683569 is an apocalyptic number.

It is an amenable number.

13683569 is a deficient number, since it is larger than the sum of its proper divisors (18175).

13683569 is an equidigital number, since it uses as much as digits as its factorization.

13683569 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18174.

The product of its digits is 116640, while the sum is 41.

The square root of 13683569 is about 3699.1308438605. The cubic root of 13683569 is about 239.1845530996.

The spelling of 13683569 in words is "thirteen million, six hundred eighty-three thousand, five hundred sixty-nine".