800043 has 4 divisors (see below), whose sum is σ = 1066728. Its totient is φ = 533360.

The previous prime is 800029. The next prime is 800053. The reversal of 800043 is 340008.

800043 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 800043 - 2⁵ = 800011 is a prime.

It is a D-number.

It is a junction number, because it is equal to n+sod(n) for n = 799995 and 800031.

It is not an unprimeable number, because it can be changed into a prime (800053) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 133338 + ... + 133343.

It is an arithmetic number, because the mean of its divisors is an integer number (266682).

2⁸⁰⁰⁰⁴³ is an apocalyptic number.

800043 is a deficient number, since it is larger than the sum of its proper divisors (266685).

800043 is a wasteful number, since it uses less digits than its factorization.

800043 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 266684.

The product of its (nonzero) digits is 96, while the sum is 15.

The square root of 800043 is about 894.4512284077. The cubic root of 800043 is about 92.8334398785.

The spelling of 800043 in words is "eight hundred thousand, forty-three".