82066085 has 8 divisors (see below), whose sum is σ = 101875320. Its totient is φ = 63388864.

The previous prime is 82066081. The next prime is 82066087. The reversal of 82066085 is 58066028.

It can be written as a sum of positive squares in 4 ways, for example, as 23833924 + 58232161 = 4882^2 + 7631^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 82066085 - 2² = 82066081 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (82066081) 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 7 ways as a sum of consecutive naturals, for example, 282842 + ... + 283131.

It is an arithmetic number, because the mean of its divisors is an integer number (12734415).

Almost surely, 2^82066085 is an apocalyptic number.

It is an amenable number.

82066085 is a deficient number, since it is larger than the sum of its proper divisors (19809235).

82066085 is a wasteful number, since it uses less digits than its factorization.

82066085 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 566007.

The product of its (nonzero) digits is 23040, while the sum is 35.

The square root of 82066085 is about 9059.0333369516. The cubic root of 82066085 is about 434.5648266119.

The spelling of 82066085 in words is "eighty-two million, sixty-six thousand, eighty-five".