82113612 has 72 divisors (see below), whose sum is σ = 226051056. Its totient is φ = 23127552.

The previous prime is 82113601. The next prime is 82113623. The reversal of 82113612 is 21631128.

It is an interprime number because it is at equal distance from previous prime (82113601) and next prime (82113623).

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 23 ways as a sum of consecutive naturals, for example, 41968 + ... + 43880.

It is an arithmetic number, because the mean of its divisors is an integer number (3139598).

Almost surely, 2^82113612 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 82113612, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (113025528).

82113612 is an abundant number, since it is smaller than the sum of its proper divisors (143937444).

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

82113612 is a wasteful number, since it uses less digits than its factorization.

82113612 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2007 (or 1998 counting only the distinct ones).

The product of its digits is 576, while the sum is 24.

The square root of 82113612 is about 9061.6561400221. The cubic root of 82113612 is about 434.6487003857.

The spelling of 82113612 in words is "eighty-two million, one hundred thirteen thousand, six hundred twelve".