13289329 has 4 divisors (see below), whose sum is σ = 13296640. Its totient is φ = 13282020.

The previous prime is 13289323. The next prime is 13289351. The reversal of 13289329 is 92398231.

13289329 = T₂₉₇₅ + T₂₉₇₆ + T₂₉₇₇.

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, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 92398231 = 839 ⋅110129.

It is a cyclic number.

It is not a de Polignac number, because 13289329 - 2³ = 13289321 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13289321) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1432 + ... + 5350.

It is an arithmetic number, because the mean of its divisors is an integer number (3324160).

Almost surely, 2^13289329 is an apocalyptic number.

13289329 is the 2977-th centered triangular number.

It is an amenable number.

13289329 is a deficient number, since it is larger than the sum of its proper divisors (7311).

13289329 is an equidigital number, since it uses as much as digits as its factorization.

13289329 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7310.

The product of its digits is 23328, while the sum is 37.

The square root of 13289329 is about 3645.4531954203. The cubic root of 13289329 is about 236.8650682617.

The spelling of 13289329 in words is "thirteen million, two hundred eighty-nine thousand, three hundred twenty-nine".