Is 1641 a deficient number and what is its deficiency?

Is 1641 a deficient number?

Here we will explain and calculate if 1641 is a deficient number and its deficiency if applicable.

1641 is a deficient number if the sum of its proper divisors is less than 1641.

The sum of its proper divisors is calculated as follows: 1 + 3 + 547 = 551.

551 is less than 1641. Therefore, 1641 is a deficient number.

The deficiency of 1641 is 1641 minus the sum of its proper divisors. Thus, the deficiency of 1641 is 1641 - 551 = 1090

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