83812164 has 12 divisors (see below), whose sum is σ = 195561744. Its totient is φ = 27937384.

The previous prime is 83812147. The next prime is 83812177. The reversal of 83812164 is 46121838.

It is a tau number, because it is divible by the number of its divisors (12).

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 3 ways as a sum of consecutive naturals, for example, 3492162 + ... + 3492185.

It is an arithmetic number, because the mean of its divisors is an integer number (16296812).

Almost surely, 2^83812164 is an apocalyptic number.

It is an amenable number.

83812164 is an abundant number, since it is smaller than the sum of its proper divisors (111749580).

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

83812164 is a wasteful number, since it uses less digits than its factorization.

83812164 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6984354 (or 6984352 counting only the distinct ones).

The product of its digits is 9216, while the sum is 33.

The square root of 83812164 is about 9154.8983609869. The cubic root of 83812164 is about 437.6252293484.

The spelling of 83812164 in words is "eighty-three million, eight hundred twelve thousand, one hundred sixty-four".