Is 639 an abundant number and what is its abundance?

Is 639 an abundant number?

Here we will explain and calculate if 639 is an abundant number and its abundance if applicable.

639 is an abundant number if the sum of its proper divisors is greater than 639.

The sum of its proper divisors is calculated as follows: 1 + 3 + 9 + 71 + 213 = 297.

297 is not greater than 639. Therefore, 639 is not an abundant number.

The abundance of 639 is the sum of its proper divisors minus 639. Thus, the abundance of 639 is 297 - 639 = no abundance

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