9833221 has 2 divisors, whose sum is σ = 9833222. Its totient is φ = 9833220.

The previous prime is 9833189. The next prime is 9833227. The reversal of 9833221 is 1223389.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 9424900 + 408321 = 3070^2 + 639^2 .

It is a cyclic number.

It is not a de Polignac number, because 9833221 - 2⁵ = 9833189 is a prime.

9833221 is a lucky number.

It is equal to p₆₅₄₃₄₆ and since 9833221 and 654346 have the same sum of digits, it is a Honaker prime.

It is a nialpdrome in base 10.

It is a self number, because there is not a number n which added to its sum of digits gives 9833221.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (9833227) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4916610 + 4916611.

It is an arithmetic number, because the mean of its divisors is an integer number (4916611).

Almost surely, 2^9833221 is an apocalyptic number.

It is an amenable number.

9833221 is a deficient number, since it is larger than the sum of its proper divisors (1).

9833221 is an equidigital number, since it uses as much as digits as its factorization.

9833221 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 9833221 is about 3135.7967089721. The cubic root of 9833221 is about 214.2390332813.

The spelling of 9833221 in words is "nine million, eight hundred thirty-three thousand, two hundred twenty-one".