3443393221 has 2 divisors, whose sum is σ = 3443393222. Its totient is φ = 3443393220.

The previous prime is 3443393183. The next prime is 3443393249. The reversal of 3443393221 is 1223933443.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2640520996 + 802872225 = 51386^2 + 28335^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3443393221 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3443393021) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1721696610 + 1721696611.

It is an arithmetic number, because the mean of its divisors is an integer number (1721696611).

Almost surely, 2^3443393221 is an apocalyptic number.

It is an amenable number.

3443393221 is a deficient number, since it is larger than the sum of its proper divisors (1).

3443393221 is an equidigital number, since it uses as much as digits as its factorization.

3443393221 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 46656, while the sum is 34.

The square root of 3443393221 is about 58680.4330335079. The cubic root of 3443393221 is about 1510.0646465898.

The spelling of 3443393221 in words is "three billion, four hundred forty-three million, three hundred ninety-three thousand, two hundred twenty-one".