3244721 has 2 divisors, whose sum is σ = 3244722. Its totient is φ = 3244720.

The previous prime is 3244711. The next prime is 3244729. The reversal of 3244721 is 1274423.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1852321 + 1392400 = 1361^2 + 1180^2 .

It is an emirp because it is prime and its reverse (1274423) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 3244721 - 2¹⁰ = 3243697 is a prime.

It is not a weakly prime, because it can be changed into another prime (3244729) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1622360 + 1622361.

It is an arithmetic number, because the mean of its divisors is an integer number (1622361).

Almost surely, 2^3244721 is an apocalyptic number.

It is an amenable number.

3244721 is a deficient number, since it is larger than the sum of its proper divisors (1).

3244721 is an equidigital number, since it uses as much as digits as its factorization.

3244721 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1344, while the sum is 23.

The square root of 3244721 is about 1801.3109115308. The cubic root of 3244721 is about 148.0445598721.

The spelling of 3244721 in words is "three million, two hundred forty-four thousand, seven hundred twenty-one".