854813 has 4 divisors (see below), whose sum is σ = 860700. Its totient is φ = 848928.

The previous prime is 854807. The next prime is 854849. The reversal of 854813 is 318458.

854813 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 can be written as a sum of positive squares in 2 ways, for example, as 41209 + 813604 = 203^2 + 902^2 .

It is a cyclic number.

It is not a de Polignac number, because 854813 - 2¹⁴ = 838429 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (854213) 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, 2720 + ... + 3017.

It is an arithmetic number, because the mean of its divisors is an integer number (215175).

2⁸⁵⁴⁸¹³ is an apocalyptic number.

It is an amenable number.

854813 is a deficient number, since it is larger than the sum of its proper divisors (5887).

854813 is a wasteful number, since it uses less digits than its factorization.

854813 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5886.

The product of its digits is 3840, while the sum is 29.

The square root of 854813 is about 924.5609768966. The cubic root of 854813 is about 94.9052795509.

The spelling of 854813 in words is "eight hundred fifty-four thousand, eight hundred thirteen".