885885 has 64 divisors (see below), whose sum is σ = 1935360. Its totient is φ = 334080.

The previous prime is 885883. The next prime is 885889. The reversal of 885885 is 588588.

It is not a de Polignac number, because 885885 - 2¹ = 885883 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (885881) 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 63 ways as a sum of consecutive naturals, for example, 14986 + ... + 15044.

It is an arithmetic number, because the mean of its divisors is an integer number (30240).

2⁸⁸⁵⁸⁸⁵ is an apocalyptic number.

It is an amenable number.

885885 is an abundant number, since it is smaller than the sum of its proper divisors (1049475).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

885885 is a wasteful number, since it uses less digits than its factorization.

885885 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 98.

The product of its digits is 102400, while the sum is 42.

The square root of 885885 is about 941.2146407701. The cubic root of 885885 is about 96.0415401823.

It can be divided in two parts, 885 and 885, that added together give a triangular number (1770 = T₅₉).

The spelling of 885885 in words is "eight hundred eighty-five thousand, eight hundred eighty-five".