8069221 has 8 divisors (see below), whose sum is σ = 8467200. Its totient is φ = 7679280.

The previous prime is 8069213. The next prime is 8069231. The reversal of 8069221 is 1229608.

It is a happy number.

8069221 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 8069221 - 2³ = 8069213 is a prime.

It is a super-2 number, since 2×8069221² = 130224655093682, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 8069221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8069231) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 100 + ... + 4018.

It is an arithmetic number, because the mean of its divisors is an integer number (1058400).

Almost surely, 2^8069221 is an apocalyptic number.

It is an amenable number.

8069221 is a deficient number, since it is larger than the sum of its proper divisors (397979).

8069221 is a wasteful number, since it uses less digits than its factorization.

8069221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4019.

The product of its (nonzero) digits is 1728, while the sum is 28.

The square root of 8069221 is about 2840.6374284657. The cubic root of 8069221 is about 200.5751858869.

The spelling of 8069221 in words is "eight million, sixty-nine thousand, two hundred twenty-one".