843216 has 40 divisors (see below), whose sum is σ = 2377824. Its totient is φ = 255360.

The previous prime is 843211. The next prime is 843229. The reversal of 843216 is 612348.

It is a happy number.

It is a super-2 number, since 2×843216² = 1422026445312, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a nude number because it is divisible by every one of its digits.

It is an Ulam number.

It is one of the 548 Lynch-Bell numbers.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (843211) by changing a digit.

843216 is an untouchable number, because it is not equal to the sum of proper divisors of any 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 7 ways as a sum of consecutive naturals, for example, 271 + ... + 1326.

2⁸⁴³²¹⁶ is an apocalyptic number.

It is an amenable number.

843216 is an abundant number, since it is smaller than the sum of its proper divisors (1534608).

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

843216 is a wasteful number, since it uses less digits than its factorization.

843216 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1619 (or 1613 counting only the distinct ones).

The product of its digits is 1152, while the sum is 24.

The square root of 843216 is about 918.2679347554. The cubic root of 843216 is about 94.4741397843.

It can be divided in two parts, 8432 and 16, that added together give a palindrome (8448).

The spelling of 843216 in words is "eight hundred forty-three thousand, two hundred sixteen".