80843 has 4 divisors (see below), whose sum is σ = 92400. Its totient is φ = 69288.

The previous prime is 80833. The next prime is 80849. The reversal of 80843 is 34808.

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

It is a cyclic number.

It is not a de Polignac number, because 80843 - 2⁶ = 80779 is a prime.

It is not an unprimeable number, because it can be changed into a prime (80849) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 5768 + ... + 5781.

It is an arithmetic number, because the mean of its divisors is an integer number (23100).

2⁸⁰⁸⁴³ is an apocalyptic number.

80843 is a deficient number, since it is larger than the sum of its proper divisors (11557).

80843 is a wasteful number, since it uses less digits than its factorization.

80843 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11556.

The product of its (nonzero) digits is 768, while the sum is 23.

The square root of 80843 is about 284.3290347467. The cubic root of 80843 is about 43.2395143146.

The spelling of 80843 in words is "eighty thousand, eight hundred forty-three".