812883 has 4 divisors (see below), whose sum is σ = 1083848. Its totient is φ = 541920.

The previous prime is 812869. The next prime is 812921. The reversal of 812883 is 388218.

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

It is not a de Polignac number, because 812883 - 2⁸ = 812627 is a prime.

It is a D-number.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 812883.

It is not an unprimeable number, because it can be changed into a prime (812183) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 135478 + ... + 135483.

It is an arithmetic number, because the mean of its divisors is an integer number (270962).

2⁸¹²⁸⁸³ is an apocalyptic number.

812883 is a deficient number, since it is larger than the sum of its proper divisors (270965).

812883 is a wasteful number, since it uses less digits than its factorization.

812883 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 270964.

The product of its digits is 3072, while the sum is 30.

The square root of 812883 is about 901.6002440106. The cubic root of 812883 is about 93.3274386867.

The spelling of 812883 in words is "eight hundred twelve thousand, eight hundred eighty-three".