Is 89 a deficient number and what is its deficiency?

Is 89 a deficient number?

Here we will explain and calculate if 89 is a deficient number and its deficiency if applicable.

89 is a deficient number if the sum of its proper divisors is less than 89.

The sum of its proper divisors is calculated as follows: 1 = 1.

1 is less than 89. Therefore, 89 is a deficient number.

The deficiency of 89 is 89 minus the sum of its proper divisors. Thus, the deficiency of 89 is 89 - 1 = 88

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