818873 has 16 divisors (see below), whose sum is σ = 984960. Its totient is φ = 672000.

The previous prime is 818837. The next prime is 818887. The reversal of 818873 is 378818.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-818873 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (818813) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5348 + ... + 5498.

It is an arithmetic number, because the mean of its divisors is an integer number (61560).

2⁸¹⁸⁸⁷³ is an apocalyptic number.

It is an amenable number.

818873 is a deficient number, since it is larger than the sum of its proper divisors (166087).

818873 is a wasteful number, since it uses less digits than its factorization.

818873 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 208.

The product of its digits is 10752, while the sum is 35.

The square root of 818873 is about 904.9160182028. The cubic root of 818873 is about 93.5561160466.

It can be divided in two parts, 8 and 18873, that added together give a palindrome (18881).

The spelling of 818873 in words is "eight hundred eighteen thousand, eight hundred seventy-three".