82689008 has 20 divisors (see below), whose sum is σ = 161864640. Its totient is φ = 40917504.

The previous prime is 82688989. The next prime is 82689011. The reversal of 82689008 is 80098628.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

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, 25088 + ... + 28191.

It is an arithmetic number, because the mean of its divisors is an integer number (8093232).

Almost surely, 2^82689008 is an apocalyptic number.

It is an amenable number.

82689008 is a deficient number, since it is larger than the sum of its proper divisors (79175632).

82689008 is a wasteful number, since it uses less digits than its factorization.

82689008 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53384 (or 53378 counting only the distinct ones).

The product of its (nonzero) digits is 55296, while the sum is 41.

The square root of 82689008 is about 9093.3496578544. The cubic root of 82689008 is about 435.6615784211.

The spelling of 82689008 in words is "eighty-two million, six hundred eighty-nine thousand, eight".