82856818 has 32 divisors (see below), whose sum is σ = 140470848. Its totient is φ = 36326400.

The previous prime is 82856803. The next prime is 82856819. The reversal of 82856818 is 81865828.

It is not an unprimeable number, because it can be changed into a prime (82856819) 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 15 ways as a sum of consecutive naturals, for example, 87021 + ... + 87967.

It is an arithmetic number, because the mean of its divisors is an integer number (4389714).

Almost surely, 2^82856818 is an apocalyptic number.

82856818 is a deficient number, since it is larger than the sum of its proper divisors (57614030).

82856818 is a wasteful number, since it uses less digits than its factorization.

82856818 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1098.

The product of its digits is 245760, while the sum is 46.

The square root of 82856818 is about 9102.5720540955. The cubic root of 82856818 is about 435.9560914456.

The spelling of 82856818 in words is "eighty-two million, eight hundred fifty-six thousand, eight hundred eighteen".