13320997 has 8 divisors (see below), whose sum is σ = 13650912. Its totient is φ = 12994800.

The previous prime is 13320977. The next prime is 13321003. The reversal of 13320997 is 79902331.

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 13320997 - 2⁷ = 13320869 is a prime.

It is a super-2 number, since 2×13320997² = 354897922148018, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13320977) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7158 + ... + 8824.

It is an arithmetic number, because the mean of its divisors is an integer number (1706364).

Almost surely, 2^13320997 is an apocalyptic number.

It is an amenable number.

13320997 is a deficient number, since it is larger than the sum of its proper divisors (329915).

13320997 is a wasteful number, since it uses less digits than its factorization.

13320997 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1859.

The product of its (nonzero) digits is 10206, while the sum is 34.

The square root of 13320997 is about 3649.7941037817. The cubic root of 13320997 is about 237.0530660309.

The spelling of 13320997 in words is "thirteen million, three hundred twenty thousand, nine hundred ninety-seven".