82085271 has 4 divisors (see below), whose sum is σ = 109447032. Its totient is φ = 54723512.

The previous prime is 82085249. The next prime is 82085273. The reversal of 82085271 is 17258028.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 82085271 - 2¹⁸ = 81823127 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (82085273) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13680876 + ... + 13680881.

It is an arithmetic number, because the mean of its divisors is an integer number (27361758).

Almost surely, 2^82085271 is an apocalyptic number.

82085271 is a deficient number, since it is larger than the sum of its proper divisors (27361761).

82085271 is a wasteful number, since it uses less digits than its factorization.

82085271 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27361760.

The product of its (nonzero) digits is 8960, while the sum is 33.

The square root of 82085271 is about 9060.0922180737. The cubic root of 82085271 is about 434.5986892041.

The spelling of 82085271 in words is "eighty-two million, eighty-five thousand, two hundred seventy-one".