13244447 has 2 divisors, whose sum is σ = 13244448. Its totient is φ = 13244446.

The previous prime is 13244443. The next prime is 13244453. The reversal of 13244447 is 74444231.

It is a weak prime.

It is an emirp because it is prime and its reverse (74444231) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 13244447 - 2² = 13244443 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13244443) 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 as a sum of consecutive naturals, namely, 6622223 + 6622224.

It is an arithmetic number, because the mean of its divisors is an integer number (6622224).

Almost surely, 2^13244447 is an apocalyptic number.

13244447 is a deficient number, since it is larger than the sum of its proper divisors (1).

13244447 is an equidigital number, since it uses as much as digits as its factorization.

13244447 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 10752, while the sum is 29.

The square root of 13244447 is about 3639.2921014945. The cubic root of 13244447 is about 236.5981130105.

Adding to 13244447 its reverse (74444231), we get a palindrome (87688678).

The spelling of 13244447 in words is "thirteen million, two hundred forty-four thousand, four hundred forty-seven".