1366844797 has 2 divisors, whose sum is σ = 1366844798. Its totient is φ = 1366844796.

The previous prime is 1366844779. The next prime is 1366844867. The reversal of 1366844797 is 7974486631.

Together with previous prime (1366844779) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 840188196 + 526656601 = 28986^2 + 22949^2 .

It is an emirp because it is prime and its reverse (7974486631) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1366844797 - 2¹¹ = 1366842749 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1366844737) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 683422398 + 683422399.

It is an arithmetic number, because the mean of its divisors is an integer number (683422399).

Almost surely, 2^1366844797 is an apocalyptic number.

It is an amenable number.

1366844797 is a deficient number, since it is larger than the sum of its proper divisors (1).

1366844797 is an equidigital number, since it uses as much as digits as its factorization.

1366844797 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 6096384, while the sum is 55.

The square root of 1366844797 is about 36970.8641635545. The cubic root of 1366844797 is about 1109.7872592318.

The spelling of 1366844797 in words is "one billion, three hundred sixty-six million, eight hundred forty-four thousand, seven hundred ninety-seven".