8220794528 has 12 divisors (see below), whose sum is σ = 16184689290. Its totient is φ = 4110397248.

The previous prime is 8220794509. The next prime is 8220794537. The reversal of 8220794528 is 8254970228.

It can be written as a sum of positive squares in only one way, i.e., 5719594384 + 2501200144 = 75628^2 + 50012^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 128449883 + ... + 128449946.

Almost surely, 2^8220794528 is an apocalyptic number.

It is an amenable number.

8220794528 is a deficient number, since it is larger than the sum of its proper divisors (7963894762).

8220794528 is a wasteful number, since it uses less digits than its factorization.

8220794528 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 256899839 (or 256899831 counting only the distinct ones).

The product of its (nonzero) digits is 645120, while the sum is 47.

The square root of 8220794528 is about 90668.5972539556. The cubic root of 8220794528 is about 2018.2328210154.

The spelling of 8220794528 in words is "eight billion, two hundred twenty million, seven hundred ninety-four thousand, five hundred twenty-eight".