82566836 has 12 divisors (see below), whose sum is σ = 157627680. Its totient is φ = 37530360.

The previous prime is 82566821. The next prime is 82566839. The reversal of 82566836 is 63866528.

It is a Harshad number since it is a multiple of its sum of digits (44), and also a Moran number because the ratio is a prime number: 1876519 = 82566836 / (8 + 2 + 5 + 6 + 6 + 8 + 3 + 6).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (82566839) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 938216 + ... + 938303.

It is an arithmetic number, because the mean of its divisors is an integer number (13135640).

Almost surely, 2^82566836 is an apocalyptic number.

It is an amenable number.

82566836 is a deficient number, since it is larger than the sum of its proper divisors (75060844).

82566836 is a wasteful number, since it uses less digits than its factorization.

82566836 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1876534 (or 1876532 counting only the distinct ones).

The product of its digits is 414720, while the sum is 44.

The square root of 82566836 is about 9086.6295181437. The cubic root of 82566836 is about 435.4469111088.

The spelling of 82566836 in words is "eighty-two million, five hundred sixty-six thousand, eight hundred thirty-six".