871898 has 4 divisors (see below), whose sum is σ = 1307850. Its totient is φ = 435948.

The previous prime is 871883. The next prime is 871901. The reversal of 871898 is 898178.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 628849 + 243049 = 793^2 + 493^2 .

It is a super-2 number, since 2×871898² = 1520412244808, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 217973 + ... + 217976.

2⁸⁷¹⁸⁹⁸ is an apocalyptic number.

871898 is a deficient number, since it is larger than the sum of its proper divisors (435952).

871898 is a wasteful number, since it uses less digits than its factorization.

871898 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 435951.

The product of its digits is 32256, while the sum is 41.

The square root of 871898 is about 933.7547857976. The cubic root of 871898 is about 95.5333984041.

The spelling of 871898 in words is "eight hundred seventy-one thousand, eight hundred ninety-eight".