875891 has 8 divisors (see below), whose sum is σ = 942480. Its totient is φ = 811008.

The previous prime is 875851. The next prime is 875893. The reversal of 875891 is 198578.

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

It is a cyclic number.

It is not a de Polignac number, because 875891 - 2¹⁸ = 613747 is a prime.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 875891.

It is not an unprimeable number, because it can be changed into a prime (875893) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 755 + ... + 1523.

It is an arithmetic number, because the mean of its divisors is an integer number (117810).

2⁸⁷⁵⁸⁹¹ is an apocalyptic number.

875891 is a deficient number, since it is larger than the sum of its proper divisors (66589).

875891 is a wasteful number, since it uses less digits than its factorization.

875891 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 853.

The product of its digits is 20160, while the sum is 38.

The square root of 875891 is about 935.8904850462. The cubic root of 875891 is about 95.6790133002.

The spelling of 875891 in words is "eight hundred seventy-five thousand, eight hundred ninety-one".