What is equal to 897?

Answer 1

There are infinitely many possible answers:

To start with, binary additions of positive integers:

1+896, 2+895, 3+894, etc.

Then include in negative integers:

-1+898, -2+899, -3+900, etc.

How about some fractions?

0.1+896.9, 0.2+986.8, 0.3+986.7, etc

You could then include some irrationals.

And, if you really want to go to town, consider complex numbers.

These were all pairs o numbers. Now look at triplets:

1+1+895, 1+2+894, etc,

and quads

1+1+1+894, etc

and quins,

1+1+1+1+893, etc.

And then you could start again with multiples.

1*897, 2*447.5, etc

And there are still lots more unexplored options.