82531679 has 2 divisors, whose sum is σ = 82531680. Its totient is φ = 82531678.

The previous prime is 82531661. The next prime is 82531693. The reversal of 82531679 is 97613528.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 82531679 - 2¹⁶ = 82466143 is a prime.

It is a super-2 number, since 2×82531679² = 13622956077118082, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (82531609) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 41265839 + 41265840.

It is an arithmetic number, because the mean of its divisors is an integer number (41265840).

Almost surely, 2^82531679 is an apocalyptic number.

82531679 is a deficient number, since it is larger than the sum of its proper divisors (1).

82531679 is an equidigital number, since it uses as much as digits as its factorization.

82531679 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 90720, while the sum is 41.

The square root of 82531679 is about 9084.6947664740. The cubic root of 82531679 is about 435.3850978305.

The spelling of 82531679 in words is "eighty-two million, five hundred thirty-one thousand, six hundred seventy-nine".