82639108 has 24 divisors (see below), whose sum is σ = 156865464. Its totient is φ = 37939200.

The previous prime is 82639103. The next prime is 82639127. The reversal of 82639108 is 80193628.

It can be written as a sum of positive squares in 4 ways, for example, as 21455424 + 61183684 = 4632^2 + 7822^2 .

It is a hoax number, since the sum of its digits (37) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (82639103) 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, 12033 + ... + 17608.

It is an arithmetic number, because the mean of its divisors is an integer number (6536061).

Almost surely, 2^82639108 is an apocalyptic number.

It is an amenable number.

82639108 is a deficient number, since it is larger than the sum of its proper divisors (74226356).

82639108 is a wasteful number, since it uses less digits than its factorization.

82639108 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29703 (or 29701 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 37.

The square root of 82639108 is about 9090.6054803847. The cubic root of 82639108 is about 435.5739251454.

It can be divided in two parts, 8263 and 9108, that added together give a palindrome (17371).

The spelling of 82639108 in words is "eighty-two million, six hundred thirty-nine thousand, one hundred eight".