82857112 has 32 divisors (see below), whose sum is σ = 168462000. Its totient is φ = 37977984.

The previous prime is 82857077. The next prime is 82857149. The reversal of 82857112 is 21175828.

It is a congruent number.

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, 12823 + ... + 18169.

Almost surely, 2^82857112 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 82857112, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (84231000).

82857112 is an abundant number, since it is smaller than the sum of its proper divisors (85604888).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

82857112 is a wasteful number, since it uses less digits than its factorization.

82857112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5515 (or 5511 counting only the distinct ones).

The product of its digits is 8960, while the sum is 34.

The square root of 82857112 is about 9102.5882033628. The cubic root of 82857112 is about 435.9566070778.

The spelling of 82857112 in words is "eighty-two million, eight hundred fifty-seven thousand, one hundred twelve".