810873 has 24 divisors (see below), whose sum is σ = 1366976. Its totient is φ = 453600.

The previous prime is 810871. The next prime is 810881. The reversal of 810873 is 378018.

It is not a de Polignac number, because 810873 - 2¹ = 810871 is a prime.

It is a Duffinian number.

810873 is an undulating number in base 14.

It is not an unprimeable number, because it can be changed into a prime (810871) 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 23 ways as a sum of consecutive naturals, for example, 3738 + ... + 3948.

2⁸¹⁰⁸⁷³ is an apocalyptic number.

It is an amenable number.

810873 is a deficient number, since it is larger than the sum of its proper divisors (556103).

810873 is a wasteful number, since it uses less digits than its factorization.

810873 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 285 (or 282 counting only the distinct ones).

The product of its (nonzero) digits is 1344, while the sum is 27.

The square root of 810873 is about 900.4848693898. The cubic root of 810873 is about 93.2504522160.

The spelling of 810873 in words is "eight hundred ten thousand, eight hundred seventy-three".