82167287 has 2 divisors, whose sum is σ = 82167288. Its totient is φ = 82167286.

The previous prime is 82167271. The next prime is 82167289. The reversal of 82167287 is 78276128.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 82167287 - 2⁴ = 82167271 is a prime.

Together with 82167289, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (82167289) 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, 41083643 + 41083644.

It is an arithmetic number, because the mean of its divisors is an integer number (41083644).

Almost surely, 2^82167287 is an apocalyptic number.

82167287 is a deficient number, since it is larger than the sum of its proper divisors (1).

82167287 is an equidigital number, since it uses as much as digits as its factorization.

82167287 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 75264, while the sum is 41.

The square root of 82167287 is about 9064.6173112824. The cubic root of 82167287 is about 434.7433850020.

The spelling of 82167287 in words is "eighty-two million, one hundred sixty-seven thousand, two hundred eighty-seven".