843872256 has 120 divisors (see below), whose sum is σ = 2521078560. Its totient is φ = 281235456.

The previous prime is 843872207. The next prime is 843872257. The reversal of 843872256 is 652278348.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (843872257) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 163345 + ... + 168431.

It is an arithmetic number, because the mean of its divisors is an integer number (21008988).

Almost surely, 2^843872256 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 843872256, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1260539280).

843872256 is an abundant number, since it is smaller than the sum of its proper divisors (1677206304).

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

843872256 is an equidigital number, since it uses as much as digits as its factorization.

843872256 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5121 (or 5092 counting only the distinct ones).

The product of its digits is 645120, while the sum is 45.

The square root of 843872256 is about 29049.4794445615. The cubic root of 843872256 is about 944.9864245971.

The spelling of 843872256 in words is "eight hundred forty-three million, eight hundred seventy-two thousand, two hundred fifty-six".