850955 has 16 divisors (see below), whose sum is σ = 1197504. Its totient is φ = 568320.

The previous prime is 850951. The next prime is 850973. The reversal of 850955 is 559058.

It is not a de Polignac number, because 850955 - 2² = 850951 is a prime.

It is not an unprimeable number, because it can be changed into a prime (850951) 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 in 15 ways as a sum of consecutive naturals, for example, 1139 + ... + 1731.

It is an arithmetic number, because the mean of its divisors is an integer number (74844).

2⁸⁵⁰⁹⁵⁵ is an apocalyptic number.

850955 is a deficient number, since it is larger than the sum of its proper divisors (346549).

850955 is a wasteful number, since it uses less digits than its factorization.

850955 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 646.

The product of its (nonzero) digits is 9000, while the sum is 32.

The square root of 850955 is about 922.4722218040. The cubic root of 850955 is about 94.7622865649.

The spelling of 850955 in words is "eight hundred fifty thousand, nine hundred fifty-five".