8219329 has 2 divisors, whose sum is σ = 8219330. Its totient is φ = 8219328.

The previous prime is 8219327. The next prime is 8219339. The reversal of 8219329 is 9239128.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 7969329 + 250000 = 2823^2 + 500^2 .

It is a cyclic number.

It is not a de Polignac number, because 8219329 - 2¹ = 8219327 is a prime.

Together with 8219327, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 8219294 and 8219303.

It is not a weakly prime, because it can be changed into another prime (8219327) 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, 4109664 + 4109665.

It is an arithmetic number, because the mean of its divisors is an integer number (4109665).

Almost surely, 2^8219329 is an apocalyptic number.

It is an amenable number.

8219329 is a deficient number, since it is larger than the sum of its proper divisors (1).

8219329 is an equidigital number, since it uses as much as digits as its factorization.

8219329 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 7776, while the sum is 34.

The square root of 8219329 is about 2866.9372159153. The cubic root of 8219329 is about 201.8112883197.

The spelling of 8219329 in words is "eight million, two hundred nineteen thousand, three hundred twenty-nine".