83891052 has 120 divisors (see below), whose sum is σ = 256295424. Its totient is φ = 23429088.

The previous prime is 83891021. The next prime is 83891063. The reversal of 83891052 is 25019838.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 83890998 and 83891016.

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 106203 + ... + 106989.

Almost surely, 2^83891052 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 83891052, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (128147712).

83891052 is an abundant number, since it is smaller than the sum of its proper divisors (172404372).

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

83891052 is a wasteful number, since it uses less digits than its factorization.

83891052 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 857 (or 846 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 36.

The square root of 83891052 is about 9159.2058607720. The cubic root of 83891052 is about 437.7624908604.

The spelling of 83891052 in words is "eighty-three million, eight hundred ninety-one thousand, fifty-two".