8220470648 has 32 divisors (see below), whose sum is σ = 16985060400. Its totient is φ = 3705827328.

The previous prime is 8220470647. The next prime is 8220470659. The reversal of 8220470648 is 8460740228.

It is a super-2 number, since 2×8220470648² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8220470647) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 914633 + ... + 923576.

Almost surely, 2^8220470648 is an apocalyptic number.

It is an amenable number.

8220470648 is an abundant number, since it is smaller than the sum of its proper divisors (8764589752).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

8220470648 is a wasteful number, since it uses less digits than its factorization.

8220470648 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1838271 (or 1838267 counting only the distinct ones).

The product of its (nonzero) digits is 172032, while the sum is 41.

The square root of 8220470648 is about 90666.8111714535. The cubic root of 8220470648 is about 2018.2063161227.

The spelling of 8220470648 in words is "eight billion, two hundred twenty million, four hundred seventy thousand, six hundred forty-eight".