9338221 has 2 divisors, whose sum is σ = 9338222. Its totient is φ = 9338220.

The previous prime is 9338213. The next prime is 9338237. The reversal of 9338221 is 1228339.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 9302500 + 35721 = 3050^2 + 189^2 .

It is a cyclic number.

It is not a de Polignac number, because 9338221 - 2³ = 9338213 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 9338221.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (9338281) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4669110 + 4669111.

It is an arithmetic number, because the mean of its divisors is an integer number (4669111).

Almost surely, 2^9338221 is an apocalyptic number.

It is an amenable number.

9338221 is a deficient number, since it is larger than the sum of its proper divisors (1).

9338221 is an equidigital number, since it uses as much as digits as its factorization.

9338221 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2592, while the sum is 28.

The square root of 9338221 is about 3055.8502908356. The cubic root of 9338221 is about 210.5820661990.

It can be divided in two parts, 9338 and 221, that added together give a palindrome (9559).

The spelling of 9338221 in words is "nine million, three hundred thirty-eight thousand, two hundred twenty-one".