83811066 has 16 divisors (see below), whose sum is σ = 167832000. Its totient is φ = 27902048.

The previous prime is 83811043. The next prime is 83811097. The reversal of 83811066 is 66011838.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3291 + ... + 13358.

It is an arithmetic number, because the mean of its divisors is an integer number (10489500).

Almost surely, 2^83811066 is an apocalyptic number.

83811066 is an abundant number, since it is smaller than the sum of its proper divisors (84020934).

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

83811066 is a wasteful number, since it uses less digits than its factorization.

83811066 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17493.

The product of its (nonzero) digits is 6912, while the sum is 33.

The square root of 83811066 is about 9154.8383928937. The cubic root of 83811066 is about 437.6233182710.

The spelling of 83811066 in words is "eighty-three million, eight hundred eleven thousand, sixty-six".