13320329 has 4 divisors (see below), whose sum is σ = 14531280. Its totient is φ = 12109380.

The previous prime is 13320313. The next prime is 13320343. The reversal of 13320329 is 92302331.

13320329 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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.

It is a cyclic number.

It is not a de Polignac number, because 13320329 - 2⁴ = 13320313 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (13320389) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 605459 + ... + 605480.

It is an arithmetic number, because the mean of its divisors is an integer number (3632820).

Almost surely, 2^13320329 is an apocalyptic number.

It is an amenable number.

13320329 is a deficient number, since it is larger than the sum of its proper divisors (1210951).

13320329 is a wasteful number, since it uses less digits than its factorization.

13320329 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1210950.

The product of its (nonzero) digits is 972, while the sum is 23.

The square root of 13320329 is about 3649.7025906230. The cubic root of 13320329 is about 237.0491035123.

It can be divided in two parts, 13320 and 329, that multiplied together give a triangular number (4382280 = T₂₉₆₀).

The spelling of 13320329 in words is "thirteen million, three hundred twenty thousand, three hundred twenty-nine".