82665608 has 32 divisors (see below), whose sum is σ = 161330400. Its totient is φ = 39677568.

The previous prime is 82665589. The next prime is 82665643. The reversal of 82665608 is 80656628.

It is a Smith number, since the sum of its digits (41) coincides with the sum of the digits of its prime factors.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18260 + ... + 22332.

It is an arithmetic number, because the mean of its divisors is an integer number (5041575).

Almost surely, 2^82665608 is an apocalyptic number.

It is an amenable number.

82665608 is a deficient number, since it is larger than the sum of its proper divisors (78664792).

82665608 is a wasteful number, since it uses less digits than its factorization.

82665608 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4181 (or 4177 counting only the distinct ones).

The product of its (nonzero) digits is 138240, while the sum is 41.

The square root of 82665608 is about 9092.0629122328. The cubic root of 82665608 is about 435.6204788724.

The spelling of 82665608 in words is "eighty-two million, six hundred sixty-five thousand, six hundred eight".