82271065 has 12 divisors (see below), whose sum is σ = 99774252. Its totient is φ = 65124800.

The previous prime is 82271053. The next prime is 82271093. The reversal of 82271065 is 56017228.

It can be written as a sum of positive squares in 6 ways, for example, as 24571849 + 57699216 = 4957^2 + 7596^2 .

It is a de Polignac number, because none of the positive numbers 2^k-82271065 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 50199 + ... + 51811.

It is an arithmetic number, because the mean of its divisors is an integer number (8314521).

Almost surely, 2^82271065 is an apocalyptic number.

It is an amenable number.

82271065 is a deficient number, since it is larger than the sum of its proper divisors (17503187).

82271065 is a wasteful number, since it uses less digits than its factorization.

82271065 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1820 (or 1719 counting only the distinct ones).

The product of its (nonzero) digits is 6720, while the sum is 31.

The square root of 82271065 is about 9070.3398503033. The cubic root of 82271065 is about 434.9263362294.

The spelling of 82271065 in words is "eighty-two million, two hundred seventy-one thousand, sixty-five".