800243 has 2 divisors, whose sum is σ = 800244. Its totient is φ = 800242.

The previous prime is 800237. The next prime is 800281. The reversal of 800243 is 342008.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 800243 - 2¹⁰ = 799219 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (800213) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 400121 + 400122.

It is an arithmetic number, because the mean of its divisors is an integer number (400122).

2⁸⁰⁰²⁴³ is an apocalyptic number.

800243 is a deficient number, since it is larger than the sum of its proper divisors (1).

800243 is an equidigital number, since it uses as much as digits as its factorization.

800243 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 192, while the sum is 17.

The square root of 800243 is about 894.5630218157. The cubic root of 800243 is about 92.8411749381.

The spelling of 800243 in words is "eight hundred thousand, two hundred forty-three".