8673406820 has 24 divisors (see below), whose sum is σ = 19615243704. Its totient is φ = 3202488576.

The previous prime is 8673406793. The next prime is 8673406853. The reversal of 8673406820 is 286043768.

8673406820 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 678185764 + 7995221056 = 26042^2 + 89416^2 .

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 16679369 + ... + 16679888.

It is an arithmetic number, because the mean of its divisors is an integer number (817301821).

Almost surely, 2^8673406820 is an apocalyptic number.

It is an amenable number.

8673406820 is an abundant number, since it is smaller than the sum of its proper divisors (10941836884).

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

8673406820 is a wasteful number, since it uses less digits than its factorization.

8673406820 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33359279 (or 33359277 counting only the distinct ones).

The product of its (nonzero) digits is 387072, while the sum is 44.

The square root of 8673406820 is about 93131.1270199175. The cubic root of 8673406820 is about 2054.6124041326.

The spelling of 8673406820 in words is "eight billion, six hundred seventy-three million, four hundred six thousand, eight hundred twenty".