876859 has 4 divisors (see below), whose sum is σ = 878920. Its totient is φ = 874800.

The previous prime is 876853. The next prime is 876871. The reversal of 876859 is 958678.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 876859 - 2³ = 876851 is a prime.

It is a super-3 number, since 3×876859³ = 2022602531211323337, which contains 333 as substring.

It is a Duffinian number.

876859 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (876851) 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, 129 + ... + 1330.

It is an arithmetic number, because the mean of its divisors is an integer number (219730).

2⁸⁷⁶⁸⁵⁹ is an apocalyptic number.

876859 is a deficient number, since it is larger than the sum of its proper divisors (2061).

876859 is a wasteful number, since it uses less digits than its factorization.

876859 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2060.

The product of its digits is 120960, while the sum is 43.

The square root of 876859 is about 936.4074967662. The cubic root of 876859 is about 95.7142472074.

It can be divided in two parts, 8 and 76859, that added together give a palindrome (76867).

The spelling of 876859 in words is "eight hundred seventy-six thousand, eight hundred fifty-nine".