843946 has 4 divisors (see below), whose sum is σ = 1265922. Its totient is φ = 421972.

The previous prime is 843911. The next prime is 844001. The reversal of 843946 is 649348.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 497025 + 346921 = 705^2 + 589^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 210985 + ... + 210988.

2⁸⁴³⁹⁴⁶ is an apocalyptic number.

843946 is a deficient number, since it is larger than the sum of its proper divisors (421976).

843946 is a wasteful number, since it uses less digits than its factorization.

843946 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 421975.

The product of its digits is 20736, while the sum is 34.

The square root of 843946 is about 918.6653362351. The cubic root of 843946 is about 94.5013950505.

The spelling of 843946 in words is "eight hundred forty-three thousand, nine hundred forty-six".