13247797 has 8 divisors (see below), whose sum is σ = 13795992. Its totient is φ = 12710400.

The previous prime is 13247791. The next prime is 13247803. The reversal of 13247797 is 79774231.

13247797 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (13247791) and next prime (13247803).

It can be written as a sum of positive squares in 4 ways, for example, as 5476 + 13242321 = 74^2 + 3639^2 .

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 13247797 - 2³ = 13247789 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 (13247791) 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, 148 + ... + 5149.

It is an arithmetic number, because the mean of its divisors is an integer number (1724499).

Almost surely, 2^13247797 is an apocalyptic number.

It is an amenable number.

13247797 is a deficient number, since it is larger than the sum of its proper divisors (548195).

13247797 is an equidigital number, since it uses as much as digits as its factorization.

13247797 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5399.

The product of its digits is 74088, while the sum is 40.

The square root of 13247797 is about 3639.7523267387. The cubic root of 13247797 is about 236.6180594042.

The spelling of 13247797 in words is "thirteen million, two hundred forty-seven thousand, seven hundred ninety-seven".