871834 has 8 divisors (see below), whose sum is σ = 1376640. Its totient is φ = 412956.

The previous prime is 871823. The next prime is 871837. The reversal of 871834 is 438178.

It is a happy number.

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

It is a junction number, because it is equal to n+sod(n) for n = 871796 and 871805.

It is not an unprimeable number, because it can be changed into a prime (871837) 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 3 ways as a sum of consecutive naturals, for example, 11434 + ... + 11509.

It is an arithmetic number, because the mean of its divisors is an integer number (172080).

2⁸⁷¹⁸³⁴ is an apocalyptic number.

871834 is a deficient number, since it is larger than the sum of its proper divisors (504806).

871834 is a wasteful number, since it uses less digits than its factorization.

871834 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22964.

The product of its digits is 5376, while the sum is 31.

The square root of 871834 is about 933.7205149294. The cubic root of 871834 is about 95.5310608650.

The spelling of 871834 in words is "eight hundred seventy-one thousand, eight hundred thirty-four".