83811882 has 64 divisors (see below), whose sum is σ = 214677504. Its totient is φ = 21176640.

The previous prime is 83811863. The next prime is 83811911. The reversal of 83811882 is 28811838.

It is a self number, because there is not a number n which added to its sum of digits gives 83811882.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 14643 + ... + 19545.

It is an arithmetic number, because the mean of its divisors is an integer number (3354336).

Almost surely, 2^83811882 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 83811882, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (107338752).

83811882 is an abundant number, since it is smaller than the sum of its proper divisors (130865622).

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

83811882 is a wasteful number, since it uses less digits than its factorization.

83811882 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4963.

The product of its digits is 24576, while the sum is 39.

The square root of 83811882 is about 9154.8829593829. The cubic root of 83811882 is about 437.6247385268.

It can be divided in two parts, 838 and 11882, that added together give a triangular number (12720 = T₁₅₉).

The spelling of 83811882 in words is "eighty-three million, eight hundred eleven thousand, eight hundred eighty-two".