885861 has 6 divisors (see below), whose sum is σ = 1279590. Its totient is φ = 590568.

The previous prime is 885839. The next prime is 885869. The reversal of 885861 is 168588.

It can be written as a sum of positive squares in only one way, i.e., 820836 + 65025 = 906^2 + 255^2 .

It is not a de Polignac number, because 885861 - 2⁷ = 885733 is a prime.

It is a super-2 number, since 2×885861² = 1569499422642, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (885869) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 49206 + ... + 49223.

It is an arithmetic number, because the mean of its divisors is an integer number (213265).

2⁸⁸⁵⁸⁶¹ is an apocalyptic number.

It is an amenable number.

885861 is a deficient number, since it is larger than the sum of its proper divisors (393729).

885861 is a wasteful number, since it uses less digits than its factorization.

885861 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 98435 (or 98432 counting only the distinct ones).

The product of its digits is 15360, while the sum is 36.

The square root of 885861 is about 941.2018912008. The cubic root of 885861 is about 96.0406728696.

The spelling of 885861 in words is "eight hundred eighty-five thousand, eight hundred sixty-one".