8359221585 has 32 divisors (see below), whose sum is σ = 15713002368. Its totient is φ = 3741189120.

The previous prime is 8359221583. The next prime is 8359221599. The reversal of 8359221585 is 5851229538.

It is a happy number.

It is not a de Polignac number, because 8359221585 - 2¹ = 8359221583 is a prime.

It is not an unprimeable number, because it can be changed into a prime (8359221583) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1946392 + ... + 1950681.

It is an arithmetic number, because the mean of its divisors is an integer number (491031324).

Almost surely, 2^8359221585 is an apocalyptic number.

It is an amenable number.

8359221585 is a deficient number, since it is larger than the sum of its proper divisors (7353780783).

8359221585 is a wasteful number, since it uses less digits than its factorization.

8359221585 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3897105.

The product of its digits is 864000, while the sum is 48.

The square root of 8359221585 is about 91428.7787570194. The cubic root of 8359221585 is about 2029.4979292541.

The spelling of 8359221585 in words is "eight billion, three hundred fifty-nine million, two hundred twenty-one thousand, five hundred eighty-five".