13669617 has 8 divisors (see below), whose sum is σ = 19628224. Its totient is φ = 8412048.

The previous prime is 13669609. The next prime is 13669627. The reversal of 13669617 is 71696631.

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

It is not a de Polignac number, because 13669617 - 2³ = 13669609 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (39), and also a Moran number because the ratio is a prime number: 350503 = 13669617 / (1 + 3 + 6 + 6 + 9 + 6 + 1 + 7).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13669627) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 175213 + ... + 175290.

It is an arithmetic number, because the mean of its divisors is an integer number (2453528).

Almost surely, 2^13669617 is an apocalyptic number.

It is an amenable number.

13669617 is a deficient number, since it is larger than the sum of its proper divisors (5958607).

13669617 is a wasteful number, since it uses less digits than its factorization.

13669617 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 350519.

The product of its digits is 40824, while the sum is 39.

The square root of 13669617 is about 3697.2445145000. The cubic root of 13669617 is about 239.1032332403.

The spelling of 13669617 in words is "thirteen million, six hundred sixty-nine thousand, six hundred seventeen".