850605 has 16 divisors (see below), whose sum is σ = 1555584. Its totient is φ = 388800.

The previous prime is 850571. The next prime is 850613. The reversal of 850605 is 506058.

It is not a de Polignac number, because 850605 - 2⁸ = 850349 is a prime.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 850605.

It is an unprimeable number.

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 in 15 ways as a sum of consecutive naturals, for example, 3946 + ... + 4155.

It is an arithmetic number, because the mean of its divisors is an integer number (97224).

2⁸⁵⁰⁶⁰⁵ is an apocalyptic number.

It is an amenable number.

850605 is a deficient number, since it is larger than the sum of its proper divisors (704979).

850605 is a wasteful number, since it uses less digits than its factorization.

850605 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8116.

The product of its (nonzero) digits is 1200, while the sum is 24.

The square root of 850605 is about 922.2824946837. The cubic root of 850605 is about 94.7492927918.

The spelling of 850605 in words is "eight hundred fifty thousand, six hundred five".