3214444721 has 2 divisors, whose sum is σ = 3214444722. Its totient is φ = 3214444720.

The previous prime is 3214444687. The next prime is 3214444763. The reversal of 3214444721 is 1274444123.

3214444721 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2701920400 + 512524321 = 51980^2 + 22639^2 .

It is a cyclic number.

It is not a de Polignac number, because 3214444721 - 2¹⁰ = 3214443697 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (3214443721) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1607222360 + 1607222361.

It is an arithmetic number, because the mean of its divisors is an integer number (1607222361).

Almost surely, 2^3214444721 is an apocalyptic number.

It is an amenable number.

3214444721 is a deficient number, since it is larger than the sum of its proper divisors (1).

3214444721 is an equidigital number, since it uses as much as digits as its factorization.

3214444721 is an evil number, because the sum of its binary digits is even.

The product of its digits is 21504, while the sum is 32.

The square root of 3214444721 is about 56696.0732414512. The cubic root of 3214444721 is about 1475.8265551745.

Adding to 3214444721 its reverse (1274444123), we get a palindrome (4488888844).

The spelling of 3214444721 in words is "three billion, two hundred fourteen million, four hundred forty-four thousand, seven hundred twenty-one".