854191 has 4 divisors (see below), whose sum is σ = 919912. Its totient is φ = 788472.

The previous prime is 854171. The next prime is 854213. The reversal of 854191 is 191458.

It is a happy number.

854191 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 854191 - 2⁵ = 854159 is a prime.

It is a Duffinian number.

854191 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (854111) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 32841 + ... + 32866.

It is an arithmetic number, because the mean of its divisors is an integer number (229978).

2⁸⁵⁴¹⁹¹ is an apocalyptic number.

854191 is a deficient number, since it is larger than the sum of its proper divisors (65721).

854191 is a wasteful number, since it uses less digits than its factorization.

854191 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 65720.

The product of its digits is 1440, while the sum is 28.

The square root of 854191 is about 924.2245398170. The cubic root of 854191 is about 94.8822548630.

The spelling of 854191 in words is "eight hundred fifty-four thousand, one hundred ninety-one".