854091 has 16 divisors (see below), whose sum is σ = 1446400. Its totient is φ = 487944.

The previous prime is 854089. The next prime is 854093. The reversal of 854091 is 190458.

It is an interprime number because it is at equal distance from previous prime (854089) and next prime (854093).

It is not a de Polignac number, because 854091 - 2¹ = 854089 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (854093) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2071 + ... + 2448.

It is an arithmetic number, because the mean of its divisors is an integer number (90400).

2⁸⁵⁴⁰⁹¹ is an apocalyptic number.

854091 is a deficient number, since it is larger than the sum of its proper divisors (592309).

854091 is a wasteful number, since it uses less digits than its factorization.

854091 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4535 (or 4529 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 27.

The square root of 854091 is about 924.1704388261. The cubic root of 854091 is about 94.8785521019.

The spelling of 854091 in words is "eight hundred fifty-four thousand, ninety-one".