6722329 has 2 divisors, whose sum is σ = 6722330. Its totient is φ = 6722328.

The previous prime is 6722321. The next prime is 6722341. The reversal of 6722329 is 9232276.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 5184729 + 1537600 = 2277^2 + 1240^2 .

It is a cyclic number.

It is not a de Polignac number, because 6722329 - 2³ = 6722321 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 6722329.

It is not a weakly prime, because it can be changed into another prime (6722321) 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, 3361164 + 3361165.

It is an arithmetic number, because the mean of its divisors is an integer number (3361165).

Almost surely, 2^6722329 is an apocalyptic number.

It is an amenable number.

6722329 is a deficient number, since it is larger than the sum of its proper divisors (1).

6722329 is an equidigital number, since it uses as much as digits as its factorization.

6722329 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 9072, while the sum is 31.

The square root of 6722329 is about 2592.7454560755. The cubic root of 6722329 is about 188.7295573083.

The spelling of 6722329 in words is "six million, seven hundred twenty-two thousand, three hundred twenty-nine".