8082221 has 4 divisors (see below), whose sum is σ = 9236832. Its totient is φ = 6927612.

The previous prime is 8082211. The next prime is 8082229. The reversal of 8082221 is 1222808.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 8082221 - 2¹⁰ = 8081197 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8082229) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 577295 + ... + 577308.

It is an arithmetic number, because the mean of its divisors is an integer number (2309208).

Almost surely, 2^8082221 is an apocalyptic number.

It is an amenable number.

8082221 is a deficient number, since it is larger than the sum of its proper divisors (1154611).

8082221 is a wasteful number, since it uses less digits than its factorization.

8082221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1154610.

The product of its (nonzero) digits is 512, while the sum is 23.

The square root of 8082221 is about 2842.9247264041. The cubic root of 8082221 is about 200.6828409877.

The spelling of 8082221 in words is "eight million, eighty-two thousand, two hundred twenty-one".