3047221 has 2 divisors, whose sum is σ = 3047222. Its totient is φ = 3047220.

The previous prime is 3047203. The next prime is 3047237. The reversal of 3047221 is 1227403.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2604996 + 442225 = 1614^2 + 665^2 .

It is a cyclic number.

It is not a de Polignac number, because 3047221 - 2⁵ = 3047189 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3047251) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1523610 + 1523611.

It is an arithmetic number, because the mean of its divisors is an integer number (1523611).

Almost surely, 2^3047221 is an apocalyptic number.

It is an amenable number.

3047221 is a deficient number, since it is larger than the sum of its proper divisors (1).

3047221 is an equidigital number, since it uses as much as digits as its factorization.

3047221 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 336, while the sum is 19.

The square root of 3047221 is about 1745.6291129561. The cubic root of 3047221 is about 144.9777373669.

The spelling of 3047221 in words is "three million, forty-seven thousand, two hundred twenty-one".