873871 has 4 divisors (see below), whose sum is σ = 892512. Its totient is φ = 855232.

The previous prime is 873863. The next prime is 873877. The reversal of 873871 is 178378.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 178378 = 2 ⋅89189.

It is a cyclic number.

It is not a de Polignac number, because 873871 - 2³ = 873863 is a prime.

It is a Duffinian number.

It is a plaindrome in base 13.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (873877) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9250 + ... + 9343.

It is an arithmetic number, because the mean of its divisors is an integer number (223128).

2⁸⁷³⁸⁷¹ is an apocalyptic number.

873871 is a deficient number, since it is larger than the sum of its proper divisors (18641).

873871 is a wasteful number, since it uses less digits than its factorization.

873871 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18640.

The product of its digits is 9408, while the sum is 34.

The square root of 873871 is about 934.8106760195. The cubic root of 873871 is about 95.6054043034.

The spelling of 873871 in words is "eight hundred seventy-three thousand, eight hundred seventy-one".