Is 658 a deficient number and what is its deficiency?

Is 658 a deficient number?

Here we will explain and calculate if 658 is a deficient number and its deficiency if applicable.

658 is a deficient number if the sum of its proper divisors is less than 658.

The sum of its proper divisors is calculated as follows: 1 + 2 + 7 + 14 + 47 + 94 + 329 = 494.

494 is less than 658. Therefore, 658 is a deficient number.

The deficiency of 658 is 658 minus the sum of its proper divisors. Thus, the deficiency of 658 is 658 - 494 = 164

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