13320347 has 4 divisors (see below), whose sum is σ = 13328040. Its totient is φ = 13312656.

The previous prime is 13320343. The next prime is 13320353. The reversal of 13320347 is 74302331.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 13320347 - 2² = 13320343 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13320343) 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 3 ways as a sum of consecutive naturals, for example, 104 + ... + 5162.

It is an arithmetic number, because the mean of its divisors is an integer number (3332010).

Almost surely, 2^13320347 is an apocalyptic number.

13320347 is a deficient number, since it is larger than the sum of its proper divisors (7693).

13320347 is an equidigital number, since it uses as much as digits as its factorization.

13320347 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7692.

The product of its (nonzero) digits is 1512, while the sum is 23.

The square root of 13320347 is about 3649.7050565765. The cubic root of 13320347 is about 237.0492102885.

Adding to 13320347 its reverse (74302331), we get a palindrome (87622678).

The spelling of 13320347 in words is "thirteen million, three hundred twenty thousand, three hundred forty-seven".