805499 has 2 divisors, whose sum is σ = 805500. Its totient is φ = 805498.

The previous prime is 805487. The next prime is 805501. The reversal of 805499 is 994508.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 805499 - 2¹² = 801403 is a prime.

Together with 805501, it forms a pair of twin primes.

It is a Chen prime.

It is an Ulam number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 805499.

It is not a weakly prime, because it can be changed into another prime (805099) 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, 402749 + 402750.

It is an arithmetic number, because the mean of its divisors is an integer number (402750).

2⁸⁰⁵⁴⁹⁹ is an apocalyptic number.

805499 is a deficient number, since it is larger than the sum of its proper divisors (1).

805499 is an equidigital number, since it uses as much as digits as its factorization.

805499 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 12960, while the sum is 35.

The square root of 805499 is about 897.4959609937. The cubic root of 805499 is about 93.0439919824.

The spelling of 805499 in words is "eight hundred five thousand, four hundred ninety-nine".