850043 has 2 divisors, whose sum is σ = 850044. Its totient is φ = 850042.

The previous prime is 850033. The next prime is 850049. The reversal of 850043 is 340058.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 850043 - 2⁴ = 850027 is a prime.

It is a Sophie Germain prime.

It is a junction number, because it is equal to n+sod(n) for n = 849997 and 850024.

It is not a weakly prime, because it can be changed into another prime (850049) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 425021 + 425022.

It is an arithmetic number, because the mean of its divisors is an integer number (425022).

2⁸⁵⁰⁰⁴³ is an apocalyptic number.

850043 is a deficient number, since it is larger than the sum of its proper divisors (1).

850043 is an equidigital number, since it uses as much as digits as its factorization.

850043 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 480, while the sum is 20.

The square root of 850043 is about 921.9777654586. The cubic root of 850043 is about 94.7284210459.

The spelling of 850043 in words is "eight hundred fifty thousand, forty-three".