804043 has 2 divisors, whose sum is σ = 804044. Its totient is φ = 804042.

The previous prime is 804031. The next prime is 804059. The reversal of 804043 is 340408.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-804043 is a prime.

804043 is a lucky number.

It is a self number, because there is not a number n which added to its sum of digits gives 804043.

It is not a weakly prime, because it can be changed into another prime (804073) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 402021 + 402022.

It is an arithmetic number, because the mean of its divisors is an integer number (402022).

2⁸⁰⁴⁰⁴³ is an apocalyptic number.

804043 is a deficient number, since it is larger than the sum of its proper divisors (1).

804043 is an equidigital number, since it uses as much as digits as its factorization.

804043 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 384, while the sum is 19.

The square root of 804043 is about 896.6844483987. The cubic root of 804043 is about 92.9878968332.

The spelling of 804043 in words is "eight hundred four thousand, forty-three".