82856668 has 12 divisors (see below), whose sum is σ = 145257112. Its totient is φ = 41354640.

The previous prime is 82856651. The next prime is 82856671. The reversal of 82856668 is 86665828.

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 (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15855 + ... + 20422.

Almost surely, 2^82856668 is an apocalyptic number.

It is an amenable number.

82856668 is a deficient number, since it is larger than the sum of its proper divisors (62400444).

82856668 is a wasteful number, since it uses less digits than its factorization.

82856668 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36852 (or 36850 counting only the distinct ones).

The product of its digits is 1105920, while the sum is 49.

The square root of 82856668 is about 9102.5638146623. The cubic root of 82856668 is about 435.9558283674.

The spelling of 82856668 in words is "eighty-two million, eight hundred fifty-six thousand, six hundred sixty-eight".