847771272 has 80 divisors (see below), whose sum is σ = 2396932560. Its totient is φ = 279926496.

The previous prime is 847771271. The next prime is 847771277. The reversal of 847771272 is 272177748.

847771272 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×847771272² = 1437432259256995968, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (847771271) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 63223 + ... + 75449.

It is an arithmetic number, because the mean of its divisors is an integer number (29961657).

Almost surely, 2^847771272 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 847771272, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1198466280).

847771272 is an abundant number, since it is smaller than the sum of its proper divisors (1549161288).

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

847771272 is a wasteful number, since it uses less digits than its factorization.

847771272 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12352 (or 12339 counting only the distinct ones).

The product of its digits is 307328, while the sum is 45.

The square root of 847771272 is about 29116.5120163800. The cubic root of 847771272 is about 946.4395896757.

The spelling of 847771272 in words is "eight hundred forty-seven million, seven hundred seventy-one thousand, two hundred seventy-two".