8417222728 has 32 divisors (see below), whose sum is σ = 16061522400. Its totient is φ = 4134254848.

The previous prime is 8417222707. The next prime is 8417222753. The reversal of 8417222728 is 8272227148.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 727275 + ... + 738757.

It is an arithmetic number, because the mean of its divisors is an integer number (501922575).

Almost surely, 2^8417222728 is an apocalyptic number.

It is an amenable number.

8417222728 is a deficient number, since it is larger than the sum of its proper divisors (7644299672).

8417222728 is a wasteful number, since it uses less digits than its factorization.

8417222728 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13101 (or 13097 counting only the distinct ones).

The product of its digits is 200704, while the sum is 43.

The square root of 8417222728 is about 91745.4234716915. The cubic root of 8417222728 is about 2034.1810602866.

The spelling of 8417222728 in words is "eight billion, four hundred seventeen million, two hundred twenty-two thousand, seven hundred twenty-eight".