843212 has 6 divisors (see below), whose sum is σ = 1475628. Its totient is φ = 421604.

The previous prime is 843211. The next prime is 843229. The reversal of 843212 is 212348.

It is a super-2 number, since 2×843212² = 1422012953888, which contains 22 as substring.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 843212.

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

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 105398 + ... + 105405.

It is an arithmetic number, because the mean of its divisors is an integer number (245938).

2⁸⁴³²¹² is an apocalyptic number.

It is an amenable number.

843212 is a deficient number, since it is larger than the sum of its proper divisors (632416).

843212 is a wasteful number, since it uses less digits than its factorization.

843212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 210807 (or 210805 counting only the distinct ones).

The product of its digits is 384, while the sum is 20.

The square root of 843212 is about 918.2657567393. The cubic root of 843212 is about 94.4739903971.

It can be divided in two parts, 8 and 43212, that multiplied together give a triangular number (345696 = T₈₃₁).

The spelling of 843212 in words is "eight hundred forty-three thousand, two hundred twelve".