13663329 has 16 divisors (see below), whose sum is σ = 18659520. Its totient is φ = 8890560.

The previous prime is 13663327. The next prime is 13663361. The reversal of 13663329 is 92336631.

13663329 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 13663329 - 2¹ = 13663327 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 13663329.

It is not an unprimeable number, because it can be changed into a prime (13663327) 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 15 ways as a sum of consecutive naturals, for example, 35862 + ... + 36240.

It is an arithmetic number, because the mean of its divisors is an integer number (1166220).

Almost surely, 2^13663329 is an apocalyptic number.

It is an amenable number.

13663329 is a deficient number, since it is larger than the sum of its proper divisors (4996191).

13663329 is a wasteful number, since it uses less digits than its factorization.

13663329 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 640.

The product of its digits is 17496, while the sum is 33.

The square root of 13663329 is about 3696.3940536691. The cubic root of 13663329 is about 239.0665652604.

The spelling of 13663329 in words is "thirteen million, six hundred sixty-three thousand, three hundred twenty-nine".