13297321 has 8 divisors (see below), whose sum is σ = 14052320. Its totient is φ = 12547872.

The previous prime is 13297307. The next prime is 13297331. The reversal of 13297321 is 12379231.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 13297321 - 2¹¹ = 13295273 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 13297321.

It is not an unprimeable number, because it can be changed into a prime (13297301) 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 7 ways as a sum of consecutive naturals, for example, 4141 + ... + 6613.

It is an arithmetic number, because the mean of its divisors is an integer number (1756540).

Almost surely, 2^13297321 is an apocalyptic number.

It is an amenable number.

13297321 is a deficient number, since it is larger than the sum of its proper divisors (754999).

13297321 is a wasteful number, since it uses less digits than its factorization.

13297321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2775.

The product of its digits is 2268, while the sum is 28.

The square root of 13297321 is about 3646.5491906733. The cubic root of 13297321 is about 236.9125410944.

The spelling of 13297321 in words is "thirteen million, two hundred ninety-seven thousand, three hundred twenty-one".