82179679 has 2 divisors, whose sum is σ = 82179680. Its totient is φ = 82179678.

The previous prime is 82179653. The next prime is 82179689. The reversal of 82179679 is 97697128.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 82179679 - 2⁷ = 82179551 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (82179689) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 41089839 + 41089840.

It is an arithmetic number, because the mean of its divisors is an integer number (41089840).

Almost surely, 2^82179679 is an apocalyptic number.

82179679 is a deficient number, since it is larger than the sum of its proper divisors (1).

82179679 is an equidigital number, since it uses as much as digits as its factorization.

82179679 is an evil number, because the sum of its binary digits is even.

The product of its digits is 381024, while the sum is 49.

The square root of 82179679 is about 9065.3008223666. The cubic root of 82179679 is about 434.7652390732.

The spelling of 82179679 in words is "eighty-two million, one hundred seventy-nine thousand, six hundred seventy-nine".