Is 3927 a deficient number and what is its deficiency?

Is 3927 a deficient number?

Here we will explain and calculate if 3927 is a deficient number and its deficiency if applicable.

3927 is a deficient number if the sum of its proper divisors is less than 3927.

The sum of its proper divisors is calculated as follows: 1 + 3 + 7 + 11 + 17 + 21 + 33 + 51 + 77 + 119 + 187 + 231 + 357 + 561 + 1309 = 2985.

2985 is less than 3927. Therefore, 3927 is a deficient number.

The deficiency of 3927 is 3927 minus the sum of its proper divisors. Thus, the deficiency of 3927 is 3927 - 2985 = 942

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