805289112 has 96 divisors (see below), whose sum is σ = 2233483200. Its totient is φ = 262035648.

The previous prime is 805289071. The next prime is 805289113. The reversal of 805289112 is 211982508.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (805289113) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 691843 + ... + 693005.

It is an arithmetic number, because the mean of its divisors is an integer number (23265450).

Almost surely, 2^805289112 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 805289112, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1116741600).

805289112 is an abundant number, since it is smaller than the sum of its proper divisors (1428194088).

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

805289112 is a wasteful number, since it uses less digits than its factorization.

805289112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1397 (or 1390 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 36.

The square root of 805289112 is about 28377.6163903877. The cubic root of 805289112 is about 930.3590982306.

The spelling of 805289112 in words is "eight hundred five million, two hundred eighty-nine thousand, one hundred twelve".