871087 has 8 divisors (see below), whose sum is σ = 1005696. Its totient is φ = 739032.

The previous prime is 871061. The next prime is 871103. The reversal of 871087 is 780178.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 871087 - 2¹¹ = 869039 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (871027) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 168 + ... + 1330.

It is an arithmetic number, because the mean of its divisors is an integer number (125712).

2⁸⁷¹⁰⁸⁷ is an apocalyptic number.

871087 is a deficient number, since it is larger than the sum of its proper divisors (134609).

871087 is a wasteful number, since it uses less digits than its factorization.

871087 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1277.

The product of its (nonzero) digits is 3136, while the sum is 31.

The square root of 871087 is about 933.3204165773. The cubic root of 871087 is about 95.5037689365.

Subtracting from 871087 its reverse (780178), we obtain a palindrome (90909).

The spelling of 871087 in words is "eight hundred seventy-one thousand, eighty-seven".