885855 has 16 divisors (see below), whose sum is σ = 1438560. Its totient is φ = 465408.

The previous prime is 885839. The next prime is 885869. The reversal of 885855 is 558588.

It is not a de Polignac number, because 885855 - 2⁴ = 885839 is a prime.

It is a congruent number.

It is an unprimeable number.

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, 691 + ... + 1499.

It is an arithmetic number, because the mean of its divisors is an integer number (89910).

2⁸⁸⁵⁸⁵⁵ is an apocalyptic number.

885855 is a deficient number, since it is larger than the sum of its proper divisors (552705).

885855 is a wasteful number, since it uses less digits than its factorization.

885855 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 890.

The product of its digits is 64000, while the sum is 39.

The square root of 885855 is about 941.1987037815. The cubic root of 885855 is about 96.0404560390.

The spelling of 885855 in words is "eight hundred eighty-five thousand, eight hundred fifty-five".