13822247 has 2 divisors, whose sum is σ = 13822248. Its totient is φ = 13822246.

The previous prime is 13822243. The next prime is 13822297. The reversal of 13822247 is 74222831.

It is a weak prime.

It is an emirp because it is prime and its reverse (74222831) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 13822247 - 2² = 13822243 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13822243) 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 as a sum of consecutive naturals, namely, 6911123 + 6911124.

It is an arithmetic number, because the mean of its divisors is an integer number (6911124).

Almost surely, 2^13822247 is an apocalyptic number.

13822247 is a deficient number, since it is larger than the sum of its proper divisors (1).

13822247 is an equidigital number, since it uses as much as digits as its factorization.

13822247 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 5376, while the sum is 29.

The square root of 13822247 is about 3717.8282639197. The cubic root of 13822247 is about 239.9898548952.

The spelling of 13822247 in words is "thirteen million, eight hundred twenty-two thousand, two hundred forty-seven".