843456 has 56 divisors (see below), whose sum is σ = 2340864. Its totient is φ = 267520.

The previous prime is 843449. The next prime is 843457. The reversal of 843456 is 654348.

843456 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 2×843456² = 1422836047872, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (843457) by changing a digit.

843456 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4321 + ... + 4511.

2⁸⁴³⁴⁵⁶ 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 843456, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1170432).

843456 is an abundant number, since it is smaller than the sum of its proper divisors (1497408).

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

843456 is a wasteful number, since it uses less digits than its factorization.

843456 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 229 (or 219 counting only the distinct ones).

The product of its digits is 11520, while the sum is 30.

The square root of 843456 is about 918.3986062707. The cubic root of 843456 is about 94.4831021548.

The spelling of 843456 in words is "eight hundred forty-three thousand, four hundred fifty-six".