805339 has 2 divisors, whose sum is σ = 805340. Its totient is φ = 805338.

The previous prime is 805333. The next prime is 805369. The reversal of 805339 is 933508.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 805339 - 2³ = 805331 is a prime.

It is not a weakly prime, because it can be changed into another prime (805331) 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 as a sum of consecutive naturals, namely, 402669 + 402670.

It is an arithmetic number, because the mean of its divisors is an integer number (402670).

2⁸⁰⁵³³⁹ is an apocalyptic number.

805339 is a deficient number, since it is larger than the sum of its proper divisors (1).

805339 is an equidigital number, since it uses as much as digits as its factorization.

805339 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3240, while the sum is 28.

The square root of 805339 is about 897.4068196754. The cubic root of 805339 is about 93.0378309880.

The spelling of 805339 in words is "eight hundred five thousand, three hundred thirty-nine".