871192 has 32 divisors (see below), whose sum is σ = 1912320. Its totient is φ = 364320.

The previous prime is 871181. The next prime is 871229. The reversal of 871192 is 291178.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is a self number, because there is not a number n which added to its sum of digits gives 871192.

It is a congruent number.

It is an unprimeable number.

871192 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2467 + ... + 2797.

It is an arithmetic number, because the mean of its divisors is an integer number (59760).

2⁸⁷¹¹⁹² 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 871192, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (956160).

871192 is an abundant number, since it is smaller than the sum of its proper divisors (1041128).

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

871192 is a wasteful number, since it uses less digits than its factorization.

871192 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 391 (or 387 counting only the distinct ones).

The product of its digits is 1008, while the sum is 28.

The square root of 871192 is about 933.3766656608. The cubic root of 871192 is about 95.5076060936.

The spelling of 871192 in words is "eight hundred seventy-one thousand, one hundred ninety-two".