854571 has 4 divisors (see below), whose sum is σ = 1139432. Its totient is φ = 569712.

The previous prime is 854569. The next prime is 854587. The reversal of 854571 is 175458.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 854571 - 2¹ = 854569 is a prime.

It is a D-number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (854171) 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, 142426 + ... + 142431.

It is an arithmetic number, because the mean of its divisors is an integer number (284858).

2⁸⁵⁴⁵⁷¹ is an apocalyptic number.

854571 is a deficient number, since it is larger than the sum of its proper divisors (284861).

854571 is a wasteful number, since it uses less digits than its factorization.

854571 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 284860.

The product of its digits is 5600, while the sum is 30.

The square root of 854571 is about 924.4300947070. The cubic root of 854571 is about 94.8963227204.

It can be divided in two parts, 85457 and 1, that added together give a palindrome (85458).

The spelling of 854571 in words is "eight hundred fifty-four thousand, five hundred seventy-one".