8170797628 has 18 divisors (see below), whose sum is σ = 16633409856. Its totient is φ = 3501770328.

The previous prime is 8170797623. The next prime is 8170797637. The reversal of 8170797628 is 8267970718.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8170797623) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 20843676 + ... + 20844067.

Almost surely, 2^8170797628 is an apocalyptic number.

It is an amenable number.

8170797628 is an abundant number, since it is smaller than the sum of its proper divisors (8462612228).

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

8170797628 is a wasteful number, since it uses less digits than its factorization.

8170797628 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41687761 (or 41687752 counting only the distinct ones).

The product of its (nonzero) digits is 2370816, while the sum is 55.

The square root of 8170797628 is about 90392.4644425629. The cubic root of 8170797628 is about 2014.1330291628.

The spelling of 8170797628 in words is "eight billion, one hundred seventy million, seven hundred ninety-seven thousand, six hundred twenty-eight".