82591711 has 2 divisors, whose sum is σ = 82591712. Its totient is φ = 82591710.

The previous prime is 82591709. The next prime is 82591741. The reversal of 82591711 is 11719528.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 82591711 - 2¹ = 82591709 is a prime.

Together with 82591709, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (82591741) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 41295855 + 41295856.

It is an arithmetic number, because the mean of its divisors is an integer number (41295856).

Almost surely, 2^82591711 is an apocalyptic number.

82591711 is a deficient number, since it is larger than the sum of its proper divisors (1).

82591711 is an equidigital number, since it uses as much as digits as its factorization.

82591711 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 5040, while the sum is 34.

The square root of 82591711 is about 9087.9981844188. The cubic root of 82591711 is about 435.4906359054.

The spelling of 82591711 in words is "eighty-two million, five hundred ninety-one thousand, seven hundred eleven".