13449287 has 2 divisors, whose sum is σ = 13449288. Its totient is φ = 13449286.

The previous prime is 13449281. The next prime is 13449311. The reversal of 13449287 is 78294431.

13449287 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is an emirp because it is prime and its reverse (78294431) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 13449287 - 2¹⁸ = 13187143 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 13449287.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13449281) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6724643 + 6724644.

It is an arithmetic number, because the mean of its divisors is an integer number (6724644).

Almost surely, 2^13449287 is an apocalyptic number.

13449287 is a deficient number, since it is larger than the sum of its proper divisors (1).

13449287 is an equidigital number, since it uses as much as digits as its factorization.

13449287 is an evil number, because the sum of its binary digits is even.

The product of its digits is 48384, while the sum is 38.

The square root of 13449287 is about 3667.3269556995. The cubic root of 13449287 is about 237.8116286000.

The spelling of 13449287 in words is "thirteen million, four hundred forty-nine thousand, two hundred eighty-seven".