8670005920 has 24 divisors (see below), whose sum is σ = 20482889364. Its totient is φ = 3468002304.

The previous prime is 8670005887. The next prime is 8670005947. The reversal of 8670005920 is 295000768.

It can be written as a sum of positive squares in 2 ways, for example, as 7469799184 + 1200206736 = 86428^2 + 34644^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 8670005920.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 27093609 + ... + 27093928.

Almost surely, 2^8670005920 is an apocalyptic number.

8670005920 is a gapful number since it is divisible by the number (80) formed by its first and last digit.

It is an amenable number.

8670005920 is an abundant number, since it is smaller than the sum of its proper divisors (11812883444).

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

8670005920 is a wasteful number, since it uses less digits than its factorization.

8670005920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54187552 (or 54187544 counting only the distinct ones).

The product of its (nonzero) digits is 30240, while the sum is 37.

The square root of 8670005920 is about 93112.8665652605. The cubic root of 8670005920 is about 2054.3438266692.

The spelling of 8670005920 in words is "eight billion, six hundred seventy million, five thousand, nine hundred twenty".