850855 has 8 divisors (see below), whose sum is σ = 1026000. Its totient is φ = 677376.

The previous prime is 850853. The next prime is 850879. The reversal of 850855 is 558058.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 850855 - 2¹ = 850853 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (850853) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1671 + ... + 2119.

It is an arithmetic number, because the mean of its divisors is an integer number (128250).

2⁸⁵⁰⁸⁵⁵ is an apocalyptic number.

850855 is a deficient number, since it is larger than the sum of its proper divisors (175145).

850855 is a wasteful number, since it uses less digits than its factorization.

850855 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 833.

The product of its (nonzero) digits is 8000, while the sum is 31.

The square root of 850855 is about 922.4180180374. The cubic root of 850855 is about 94.7585744219.

The spelling of 850855 in words is "eight hundred fifty thousand, eight hundred fifty-five".