82077679 has 2 divisors, whose sum is σ = 82077680. Its totient is φ = 82077678.

The previous prime is 82077647. The next prime is 82077691. The reversal of 82077679 is 97677028.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 82077679 - 2⁵ = 82077647 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (82077629) 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, 41038839 + 41038840.

It is an arithmetic number, because the mean of its divisors is an integer number (41038840).

Almost surely, 2^82077679 is an apocalyptic number.

82077679 is a deficient number, since it is larger than the sum of its proper divisors (1).

82077679 is an equidigital number, since it uses as much as digits as its factorization.

82077679 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 296352, while the sum is 46.

The square root of 82077679 is about 9059.6732281027. The cubic root of 82077679 is about 434.5852902311.

The spelling of 82077679 in words is "eighty-two million, seventy-seven thousand, six hundred seventy-nine".