13799569 has 8 divisors (see below), whose sum is σ = 16038720. Its totient is φ = 11627376.

The previous prime is 13799551. The next prime is 13799579. The reversal of 13799569 is 96599731.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 13799569 - 2⁵ = 13799537 is a prime.

It is a super-2 number, since 2×13799569² = 380856209171522, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13799519) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16294 + ... + 17119.

It is an arithmetic number, because the mean of its divisors is an integer number (2004840).

Almost surely, 2^13799569 is an apocalyptic number.

It is an amenable number.

13799569 is a deficient number, since it is larger than the sum of its proper divisors (2239151).

13799569 is an equidigital number, since it uses as much as digits as its factorization.

13799569 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33479.

The product of its digits is 459270, while the sum is 49.

The square root of 13799569 is about 3714.7771130984. Note that the first 3 decimals coincide. The cubic root of 13799569 is about 239.8585335280.

The spelling of 13799569 in words is "thirteen million, seven hundred ninety-nine thousand, five hundred sixty-nine".