9446221 has 2 divisors, whose sum is σ = 9446222. Its totient is φ = 9446220.

The previous prime is 9446207. The next prime is 9446231. The reversal of 9446221 is 1226449.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 8468100 + 978121 = 2910^2 + 989^2 .

It is a cyclic number.

It is not a de Polignac number, because 9446221 - 2⁵ = 9446189 is a prime.

It is a Chen prime.

9446221 is a lucky number.

It is a self number, because there is not a number n which added to its sum of digits gives 9446221.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (9446231) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4723110 + 4723111.

It is an arithmetic number, because the mean of its divisors is an integer number (4723111).

Almost surely, 2^9446221 is an apocalyptic number.

It is an amenable number.

9446221 is a deficient number, since it is larger than the sum of its proper divisors (1).

9446221 is an equidigital number, since it uses as much as digits as its factorization.

9446221 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3456, while the sum is 28.

The square root of 9446221 is about 3073.4705139305. The cubic root of 9446221 is about 211.3907764671.

The spelling of 9446221 in words is "nine million, four hundred forty-six thousand, two hundred twenty-one".