985844 has 12 divisors (see below), whose sum is σ = 1735524. Its totient is φ = 489984.

The previous prime is 985819. The next prime is 985867. The reversal of 985844 is 448589.

It can be written as a sum of positive squares in 2 ways, for example, as 438244 + 547600 = 662^2 + 740^2 .

It is a junction number, because it is equal to n+sod(n) for n = 985798 and 985807.

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 3 ways as a sum of consecutive naturals, for example, 134 + ... + 1410.

It is an arithmetic number, because the mean of its divisors is an integer number (144627).

2⁹⁸⁵⁸⁴⁴ is an apocalyptic number.

It is an amenable number.

985844 is a deficient number, since it is larger than the sum of its proper divisors (749680).

985844 is a wasteful number, since it uses less digits than its factorization.

985844 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1474 (or 1472 counting only the distinct ones).

The product of its digits is 46080, while the sum is 38.

The square root of 985844 is about 992.8967720765. The cubic root of 985844 is about 99.5258890740.

The spelling of 985844 in words is "nine hundred eighty-five thousand, eight hundred forty-four".