847998660 has 48 divisors (see below), whose sum is σ = 2406934656. Its totient is φ = 223034112.

The previous prime is 847998649. The next prime is 847998703. The reversal of 847998660 is 66899748.

847998660 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 847998660.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 92424 + ... + 101183.

It is an arithmetic number, because the mean of its divisors is an integer number (50144472).

Almost surely, 2^847998660 is an apocalyptic number.

It is an amenable number.

847998660 is an abundant number, since it is smaller than the sum of its proper divisors (1558935996).

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

847998660 is a wasteful number, since it uses less digits than its factorization.

847998660 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 193692 (or 193690 counting only the distinct ones).

The product of its (nonzero) digits is 5225472, while the sum is 57.

The square root of 847998660 is about 29120.4165492185. The cubic root of 847998660 is about 946.5241996699.

The spelling of 847998660 in words is "eight hundred forty-seven million, nine hundred ninety-eight thousand, six hundred sixty".