82566312 has 16 divisors (see below), whose sum is σ = 206415840. Its totient is φ = 27522096.

The previous prime is 82566307. The next prime is 82566317. The reversal of 82566312 is 21366528.

It is an interprime number because it is at equal distance from previous prime (82566307) and next prime (82566317).

It is not an unprimeable number, because it can be changed into a prime (82566317) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1720108 + ... + 1720155.

It is an arithmetic number, because the mean of its divisors is an integer number (12900990).

Almost surely, 2^82566312 is an apocalyptic number.

It is an amenable number.

82566312 is an abundant number, since it is smaller than the sum of its proper divisors (123849528).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

82566312 is a wasteful number, since it uses less digits than its factorization.

82566312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3440272 (or 3440268 counting only the distinct ones).

The product of its digits is 17280, while the sum is 33.

The square root of 82566312 is about 9086.6006845244. The cubic root of 82566312 is about 435.4459899372.

The spelling of 82566312 in words is "eighty-two million, five hundred sixty-six thousand, three hundred twelve".