847438680 has 256 divisors, whose sum is σ = 2932899840. Its totient is φ = 193881600.

The previous prime is 847438651. The next prime is 847438699. The reversal of 847438680 is 86834748.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 3126945 + ... + 3127215.

It is an arithmetic number, because the mean of its divisors is an integer number (11456640).

Almost surely, 2^847438680 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 847438680, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1466449920).

847438680 is an abundant number, since it is smaller than the sum of its proper divisors (2085461160).

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

847438680 is a wasteful number, since it uses less digits than its factorization.

847438680 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 422 (or 418 counting only the distinct ones).

The product of its (nonzero) digits is 1032192, while the sum is 48.

The square root of 847438680 is about 29110.8000577105. The cubic root of 847438680 is about 946.3158065204.

The spelling of 847438680 in words is "eight hundred forty-seven million, four hundred thirty-eight thousand, six hundred eighty".