3243220349 has 2 divisors, whose sum is σ = 3243220350. Its totient is φ = 3243220348.

The previous prime is 3243220313. The next prime is 3243220369. The reversal of 3243220349 is 9430223423.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1964085124 + 1279135225 = 44318^2 + 35765^2 .

It is a cyclic number.

It is not a de Polignac number, because 3243220349 - 2²⁴ = 3226443133 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3243220369) 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, 1621610174 + 1621610175.

It is an arithmetic number, because the mean of its divisors is an integer number (1621610175).

Almost surely, 2^3243220349 is an apocalyptic number.

It is an amenable number.

3243220349 is a deficient number, since it is larger than the sum of its proper divisors (1).

3243220349 is an equidigital number, since it uses as much as digits as its factorization.

3243220349 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 31104, while the sum is 32.

The square root of 3243220349 is about 56949.2787399454. The cubic root of 3243220349 is about 1480.2173331008.

The spelling of 3243220349 in words is "three billion, two hundred forty-three million, two hundred twenty thousand, three hundred forty-nine".