13315847 has 4 divisors (see below), whose sum is σ = 13323240. Its totient is φ = 13308456.

The previous prime is 13315831. The next prime is 13315849. The reversal of 13315847 is 74851331.

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 13315847 - 2⁴ = 13315831 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13315849) 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, 968 + ... + 5250.

It is an arithmetic number, because the mean of its divisors is an integer number (3330810).

Almost surely, 2^13315847 is an apocalyptic number.

13315847 is a deficient number, since it is larger than the sum of its proper divisors (7393).

13315847 is an equidigital number, since it uses as much as digits as its factorization.

13315847 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7392.

The product of its digits is 10080, while the sum is 32.

The square root of 13315847 is about 3649.0885163284. The cubic root of 13315847 is about 237.0225132465.

The spelling of 13315847 in words is "thirteen million, three hundred fifteen thousand, eight hundred forty-seven".