82087871 has 2 divisors, whose sum is σ = 82087872. Its totient is φ = 82087870.

The previous prime is 82087813. The next prime is 82087879. The reversal of 82087871 is 17878028.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 82087871 - 2¹⁴ = 82071487 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (82087879) 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, 41043935 + 41043936.

It is an arithmetic number, because the mean of its divisors is an integer number (41043936).

Almost surely, 2^82087871 is an apocalyptic number.

82087871 is a deficient number, since it is larger than the sum of its proper divisors (1).

82087871 is an equidigital number, since it uses as much as digits as its factorization.

82087871 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 50176, while the sum is 41.

The square root of 82087871 is about 9060.2357033358. The cubic root of 82087871 is about 434.6032777035.

The spelling of 82087871 in words is "eighty-two million, eighty-seven thousand, eight hundred seventy-one".