8220064 has 12 divisors (see below), whose sum is σ = 16183314. Its totient is φ = 4110016.

The previous prime is 8220013. The next prime is 8220089. The reversal of 8220064 is 4600228.

It can be written as a sum of positive squares in only one way, i.e., 4579600 + 3640464 = 2140^2 + 1908^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 128407 + ... + 128470.

Almost surely, 2^8220064 is an apocalyptic number.

It is an amenable number.

8220064 is a deficient number, since it is larger than the sum of its proper divisors (7963250).

8220064 is a wasteful number, since it uses less digits than its factorization.

8220064 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 256887 (or 256879 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 22.

The square root of 8220064 is about 2867.0653986263. The cubic root of 8220064 is about 201.8173036881.

The spelling of 8220064 in words is "eight million, two hundred twenty thousand, sixty-four".