8068221 has 16 divisors (see below), whose sum is σ = 13660800. Its totient is φ = 4610304.

The previous prime is 8068213. The next prime is 8068223. The reversal of 8068221 is 1228608.

It is not a de Polignac number, because 8068221 - 2³ = 8068213 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8068223) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 21156 + ... + 21533.

It is an arithmetic number, because the mean of its divisors is an integer number (853800).

Almost surely, 2^8068221 is an apocalyptic number.

It is an amenable number.

8068221 is a deficient number, since it is larger than the sum of its proper divisors (5592579).

8068221 is a wasteful number, since it uses less digits than its factorization.

8068221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42705 (or 42699 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 27.

The square root of 8068221 is about 2840.4614061803. The cubic root of 8068221 is about 200.5668999374.

The spelling of 8068221 in words is "eight million, sixty-eight thousand, two hundred twenty-one".