847579812 has 48 divisors (see below), whose sum is σ = 2102490432. Its totient is φ = 264832000.

The previous prime is 847579793. The next prime is 847579823. The reversal of 847579812 is 218975748.

It is a Harshad number since it is a multiple of its sum of digits (51).

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 42928 + ... + 59480.

It is an arithmetic number, because the mean of its divisors is an integer number (43801884).

Almost surely, 2^847579812 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 847579812, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1051245216).

847579812 is an abundant number, since it is smaller than the sum of its proper divisors (1254910620).

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

847579812 is a wasteful number, since it uses less digits than its factorization.

847579812 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16828 (or 16826 counting only the distinct ones).

The product of its digits is 1128960, while the sum is 51.

The square root of 847579812 is about 29113.2240055958. The cubic root of 847579812 is about 946.3683365863.

The spelling of 847579812 in words is "eight hundred forty-seven million, five hundred seventy-nine thousand, eight hundred twelve".