83871064 has 32 divisors (see below), whose sum is σ = 173754720. Its totient is φ = 37751296.

The previous prime is 83871059. The next prime is 83871079. The reversal of 83871064 is 46017838.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10279 + ... + 16534.

It is an arithmetic number, because the mean of its divisors is an integer number (5429835).

Almost surely, 2^83871064 is an apocalyptic number.

It is an amenable number.

83871064 is an abundant number, since it is smaller than the sum of its proper divisors (89883656).

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

83871064 is a wasteful number, since it uses less digits than its factorization.

83871064 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26859 (or 26855 counting only the distinct ones).

The product of its (nonzero) digits is 32256, while the sum is 37.

The square root of 83871064 is about 9158.1146531369. The cubic root of 83871064 is about 437.7277207966.

The spelling of 83871064 in words is "eighty-three million, eight hundred seventy-one thousand, sixty-four".