854891 has 8 divisors (see below), whose sum is σ = 907200. Its totient is φ = 804160.

The previous prime is 854881. The next prime is 854897. The reversal of 854891 is 198458.

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 854891 - 2¹⁸ = 592747 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (854897) 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, 830 + ... + 1548.

It is an arithmetic number, because the mean of its divisors is an integer number (113400).

2⁸⁵⁴⁸⁹¹ is an apocalyptic number.

854891 is a deficient number, since it is larger than the sum of its proper divisors (52309).

854891 is a wasteful number, since it uses less digits than its factorization.

854891 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 789.

The product of its digits is 11520, while the sum is 35.

The square root of 854891 is about 924.6031581170. The cubic root of 854891 is about 94.9081661029.

The spelling of 854891 in words is "eight hundred fifty-four thousand, eight hundred ninety-one".