847480920 has 384 divisors, whose sum is σ = 3130617600. Its totient is φ = 181708800.

The previous prime is 847480919. The next prime is 847480927. The reversal of 847480920 is 29084748.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (847480927) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 6469255 + ... + 6469385.

It is an arithmetic number, because the mean of its divisors is an integer number (8152650).

Almost surely, 2^847480920 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 847480920, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1565308800).

847480920 is an abundant number, since it is smaller than the sum of its proper divisors (2283136680).

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

847480920 is a wasteful number, since it uses less digits than its factorization.

847480920 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 211 (or 194 counting only the distinct ones).

The product of its (nonzero) digits is 129024, while the sum is 42.

The square root of 847480920 is about 29111.5255526054. The cubic root of 847480920 is about 946.3315290801.

The spelling of 847480920 in words is "eight hundred forty-seven million, four hundred eighty thousand, nine hundred twenty".