82566911 has 6 divisors (see below), whose sum is σ = 96047280. Its totient is φ = 70771596.

The previous prime is 82566893. The next prime is 82566949. The reversal of 82566911 is 11966528.

It is not a de Polignac number, because 82566911 - 2¹⁸ = 82304767 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (82566961) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 842471 + ... + 842568.

It is an arithmetic number, because the mean of its divisors is an integer number (16007880).

Almost surely, 2^82566911 is an apocalyptic number.

82566911 is a deficient number, since it is larger than the sum of its proper divisors (13480369).

82566911 is a wasteful number, since it uses less digits than its factorization.

82566911 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1685053 (or 1685046 counting only the distinct ones).

The product of its digits is 25920, while the sum is 38.

The square root of 82566911 is about 9086.6336450855. The cubic root of 82566911 is about 435.4470429556.

The spelling of 82566911 in words is "eighty-two million, five hundred sixty-six thousand, nine hundred eleven".