13822217 has 2 divisors, whose sum is σ = 13822218. Its totient is φ = 13822216.

The previous prime is 13822157. The next prime is 13822223. The reversal of 13822217 is 71222831.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 13756681 + 65536 = 3709^2 + 256^2 .

It is a cyclic number.

It is not a de Polignac number, because 13822217 - 2¹⁸ = 13560073 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (13822247) 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, 6911108 + 6911109.

It is an arithmetic number, because the mean of its divisors is an integer number (6911109).

Almost surely, 2^13822217 is an apocalyptic number.

It is an amenable number.

13822217 is a deficient number, since it is larger than the sum of its proper divisors (1).

13822217 is an equidigital number, since it uses as much as digits as its factorization.

13822217 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1344, while the sum is 26.

The square root of 13822217 is about 3717.8242293040. The cubic root of 13822217 is about 239.9896812693.

The spelling of 13822217 in words is "thirteen million, eight hundred twenty-two thousand, two hundred seventeen".