Is 3999 a deficient number and what is its deficiency?

Is 3999 a deficient number?

Here we will explain and calculate if 3999 is a deficient number and its deficiency if applicable.

3999 is a deficient number if the sum of its proper divisors is less than 3999.

The sum of its proper divisors is calculated as follows: 1 + 3 + 31 + 43 + 93 + 129 + 1333 = 1633.

1633 is less than 3999. Therefore, 3999 is a deficient number.

The deficiency of 3999 is 3999 minus the sum of its proper divisors. Thus, the deficiency of 3999 is 3999 - 1633 = 2366

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