3321664349 has 2 divisors, whose sum is σ = 3321664350. Its totient is φ = 3321664348.

The previous prime is 3321664309. The next prime is 3321664351. The reversal of 3321664349 is 9434661233.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 3272412025 + 49252324 = 57205^2 + 7018^2 .

It is an emirp because it is prime and its reverse (9434661233) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3321664349 is a prime.

It is a super-2 number, since 2×3321664349² = 22066908094835187602, which contains 22 as substring.

Together with 3321664351, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3321664309) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1660832174 + 1660832175.

It is an arithmetic number, because the mean of its divisors is an integer number (1660832175).

Almost surely, 2^3321664349 is an apocalyptic number.

It is an amenable number.

3321664349 is a deficient number, since it is larger than the sum of its proper divisors (1).

3321664349 is an equidigital number, since it uses as much as digits as its factorization.

3321664349 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 279936, while the sum is 41.

The square root of 3321664349 is about 57633.8819532400. The cubic root of 3321664349 is about 1492.0564294568.

The spelling of 3321664349 in words is "three billion, three hundred twenty-one million, six hundred sixty-four thousand, three hundred forty-nine".