874891 has 2 divisors, whose sum is σ = 874892. Its totient is φ = 874890.

The previous prime is 874889. The next prime is 874919. The reversal of 874891 is 198478.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 874891 - 2¹ = 874889 is a prime.

Together with 874889, it forms a pair of twin primes.

It is a self number, because there is not a number n which added to its sum of digits gives 874891.

It is not a weakly prime, because it can be changed into another prime (874831) 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 as a sum of consecutive naturals, namely, 437445 + 437446.

It is an arithmetic number, because the mean of its divisors is an integer number (437446).

2⁸⁷⁴⁸⁹¹ is an apocalyptic number.

874891 is a deficient number, since it is larger than the sum of its proper divisors (1).

874891 is an equidigital number, since it uses as much as digits as its factorization.

874891 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 16128, while the sum is 37.

The square root of 874891 is about 935.3560819282. The cubic root of 874891 is about 95.6425873642.

The spelling of 874891 in words is "eight hundred seventy-four thousand, eight hundred ninety-one".