13329 has 6 divisors (see below), whose sum is σ = 19266. Its totient is φ = 8880.

The previous prime is 13327. The next prime is 13331. The reversal of 13329 is 92331.

It is an interprime number because it is at equal distance from previous prime (13327) and next prime (13331).

It can be written as a sum of positive squares in only one way, i.e., 11025 + 2304 = 105^2 + 48^2 .

It is not a de Polignac number, because 13329 - 2¹ = 13327 is a prime.

It is not an unprimeable number, because it can be changed into a prime (13327) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (5) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 732 + ... + 749.

It is an arithmetic number, because the mean of its divisors is an integer number (3211).

2¹³³²⁹ is an apocalyptic number.

It is an amenable number.

13329 is a deficient number, since it is larger than the sum of its proper divisors (5937).

13329 is a wasteful number, since it uses less digits than its factorization.

13329 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1487 (or 1484 counting only the distinct ones).

The product of its digits is 162, while the sum is 18.

The square root of 13329 is about 115.4512884294. The cubic root of 13329 is about 23.7100528842.

The spelling of 13329 in words is "thirteen thousand, three hundred twenty-nine".