871340 has 24 divisors (see below), whose sum is σ = 1926960. Its totient is φ = 330048.

The previous prime is 871337. The next prime is 871349. The reversal of 871340 is 43178.

It is a happy number.

It is an Ulam number.

It is not an unprimeable number, because it can be changed into a prime (871349) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 767 + ... + 1526.

It is an arithmetic number, because the mean of its divisors is an integer number (80290).

2⁸⁷¹³⁴⁰ is an apocalyptic number.

It is an amenable number.

871340 is an abundant number, since it is smaller than the sum of its proper divisors (1055620).

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

871340 is a wasteful number, since it uses less digits than its factorization.

871340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2321 (or 2319 counting only the distinct ones).

The product of its (nonzero) digits is 672, while the sum is 23.

The square root of 871340 is about 933.4559443273. The cubic root of 871340 is about 95.5130141343.

The spelling of 871340 in words is "eight hundred seventy-one thousand, three hundred forty".