Is 4089 a deficient number and what is its deficiency?

Is 4089 a deficient number?

Here we will explain and calculate if 4089 is a deficient number and its deficiency if applicable.

4089 is a deficient number if the sum of its proper divisors is less than 4089.

The sum of its proper divisors is calculated as follows: 1 + 3 + 29 + 47 + 87 + 141 + 1363 = 1671.

1671 is less than 4089. Therefore, 4089 is a deficient number.

The deficiency of 4089 is 4089 minus the sum of its proper divisors. Thus, the deficiency of 4089 is 4089 - 1671 = 2418

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