13973329 has 4 divisors (see below), whose sum is σ = 14004900. Its totient is φ = 13941760.

The previous prime is 13973327. The next prime is 13973359. The reversal of 13973329 is 92337931.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 7980625 + 5992704 = 2825^2 + 2448^2 .

It is a cyclic number.

It is not a de Polignac number, because 13973329 - 2¹ = 13973327 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13973327) 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, 15112 + ... + 16009.

It is an arithmetic number, because the mean of its divisors is an integer number (3501225).

Almost surely, 2^13973329 is an apocalyptic number.

It is an amenable number.

13973329 is a deficient number, since it is larger than the sum of its proper divisors (31571).

13973329 is an equidigital number, since it uses as much as digits as its factorization.

13973329 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31570.

The product of its digits is 30618, while the sum is 37.

The square root of 13973329 is about 3738.0916254153. The cubic root of 13973329 is about 240.8610793521.

The spelling of 13973329 in words is "thirteen million, nine hundred seventy-three thousand, three hundred twenty-nine".