13320497 has 4 divisors (see below), whose sum is σ = 13630320. Its totient is φ = 13010676.

The previous prime is 13320493. The next prime is 13320521. The reversal of 13320497 is 79402331.

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 13320497 - 2² = 13320493 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13320491) 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, 154847 + ... + 154932.

It is an arithmetic number, because the mean of its divisors is an integer number (3407580).

Almost surely, 2^13320497 is an apocalyptic number.

It is an amenable number.

13320497 is a deficient number, since it is larger than the sum of its proper divisors (309823).

13320497 is an equidigital number, since it uses as much as digits as its factorization.

13320497 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 309822.

The product of its (nonzero) digits is 4536, while the sum is 29.

The square root of 13320497 is about 3649.7256061244. The cubic root of 13320497 is about 237.0501000864.

The spelling of 13320497 in words is "thirteen million, three hundred twenty thousand, four hundred ninety-seven".