8383221 has 24 divisors (see below), whose sum is σ = 15098304. Its totient is φ = 4354560.

The previous prime is 8383217. The next prime is 8383223. The reversal of 8383221 is 1223838.

It is not a de Polignac number, because 8383221 - 2² = 8383217 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8383223) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 5356 + ... + 6741.

It is an arithmetic number, because the mean of its divisors is an integer number (629096).

Almost surely, 2^8383221 is an apocalyptic number.

It is an amenable number.

8383221 is a deficient number, since it is larger than the sum of its proper divisors (6715083).

8383221 is a wasteful number, since it uses less digits than its factorization.

8383221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12121 (or 12118 counting only the distinct ones).

The product of its digits is 2304, while the sum is 27.

The square root of 8383221 is about 2895.3792497702. The cubic root of 8383221 is about 203.1438310274.

The spelling of 8383221 in words is "eight million, three hundred eighty-three thousand, two hundred twenty-one".