800943 has 16 divisors (see below), whose sum is σ = 1255296. Its totient is φ = 447840.

The previous prime is 800923. The next prime is 800953. The reversal of 800943 is 349008.

It is not a de Polignac number, because 800943 - 2⁶ = 800879 is a prime.

800943 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (800903) 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 15 ways as a sum of consecutive naturals, for example, 505 + ... + 1362.

It is an arithmetic number, because the mean of its divisors is an integer number (78456).

2⁸⁰⁰⁹⁴³ is an apocalyptic number.

800943 is a deficient number, since it is larger than the sum of its proper divisors (454353).

800943 is a wasteful number, since it uses less digits than its factorization.

800943 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1894.

The product of its (nonzero) digits is 864, while the sum is 24.

The square root of 800943 is about 894.9541887717. The cubic root of 800943 is about 92.8682375022.

The spelling of 800943 in words is "eight hundred thousand, nine hundred forty-three".