843381 has 24 divisors (see below), whose sum is σ = 1520064. Its totient is φ = 437760.

The previous prime is 843379. The next prime is 843383. The reversal of 843381 is 183348.

It is an interprime number because it is at equal distance from previous prime (843379) and next prime (843383).

It is not a de Polignac number, because 843381 - 2¹ = 843379 is a prime.

It is a super-2 number, since 2×843381² = 1422583022322, which contains 22 as substring.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 843381.

It is not an unprimeable number, because it can be changed into a prime (843383) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 85 + ... + 1301.

It is an arithmetic number, because the mean of its divisors is an integer number (63336).

2⁸⁴³³⁸¹ is an apocalyptic number.

It is an amenable number.

843381 is a deficient number, since it is larger than the sum of its proper divisors (676683).

843381 is a wasteful number, since it uses less digits than its factorization.

843381 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1241 (or 1238 counting only the distinct ones).

The product of its digits is 2304, while the sum is 27.

The square root of 843381 is about 918.3577734195. The cubic root of 843381 is about 94.4803015967.

The spelling of 843381 in words is "eight hundred forty-three thousand, three hundred eighty-one".