82887856 has 20 divisors (see below), whose sum is σ = 160759800. Its totient is φ = 41401472.

The previous prime is 82887841. The next prime is 82887859. The reversal of 82887856 is 65878828.

It is not an unprimeable number, because it can be changed into a prime (82887859) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 18615 + ... + 22633.

It is an arithmetic number, because the mean of its divisors is an integer number (8037990).

Almost surely, 2^82887856 is an apocalyptic number.

It is an amenable number.

82887856 is a deficient number, since it is larger than the sum of its proper divisors (77871944).

82887856 is a wasteful number, since it uses less digits than its factorization.

82887856 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5316 (or 5310 counting only the distinct ones).

The product of its digits is 1720320, while the sum is 52.

The square root of 82887856 is about 9104.2767971981. The cubic root of 82887856 is about 436.0105207460.

Subtracting from 82887856 its reverse (65878828), we obtain a triangular number (17009028 = T₅₈₃₂).

The spelling of 82887856 in words is "eighty-two million, eight hundred eighty-seven thousand, eight hundred fifty-six".