891132 has 48 divisors (see below), whose sum is σ = 2335872. Its totient is φ = 262080.

The previous prime is 891103. The next prime is 891133. The reversal of 891132 is 231198.

Its product of digits (432) is a multiple of the sum of its prime divisors (216).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (891133) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5598 + ... + 5754.

It is an arithmetic number, because the mean of its divisors is an integer number (48664).

2⁸⁹¹¹³² 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 891132, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1167936).

891132 is an abundant number, since it is smaller than the sum of its proper divisors (1444740).

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

891132 is a wasteful number, since it uses less digits than its factorization.

891132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 218 (or 216 counting only the distinct ones).

The product of its digits is 432, while the sum is 24.

The square root of 891132 is about 943.9978813536. The cubic root of 891132 is about 96.2307815679.

It can be divided in two parts, 89 and 1132, that added together give a palindrome (1221).

The spelling of 891132 in words is "eight hundred ninety-one thousand, one hundred thirty-two".