82711549 has 2 divisors, whose sum is σ = 82711550. Its totient is φ = 82711548.

The previous prime is 82711529. The next prime is 82711553. The reversal of 82711549 is 94511728.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 82682649 + 28900 = 9093^2 + 170^2 .

It is a cyclic number.

It is not a de Polignac number, because 82711549 - 2⁹ = 82711037 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (82711529) 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, 41355774 + 41355775.

It is an arithmetic number, because the mean of its divisors is an integer number (41355775).

Almost surely, 2^82711549 is an apocalyptic number.

It is an amenable number.

82711549 is a deficient number, since it is larger than the sum of its proper divisors (1).

82711549 is an equidigital number, since it uses as much as digits as its factorization.

82711549 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 20160, while the sum is 37.

The square root of 82711549 is about 9094.5889956611. The cubic root of 82711549 is about 435.7011618985.

The spelling of 82711549 in words is "eighty-two million, seven hundred eleven thousand, five hundred forty-nine".