812283 has 4 divisors (see below), whose sum is σ = 1083048. Its totient is φ = 541520.

The previous prime is 812281. The next prime is 812297. The reversal of 812283 is 382218.

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

It is a cyclic number.

It is not a de Polignac number, because 812283 - 2¹ = 812281 is a prime.

It is a D-number.

812283 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (812281) 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, 135378 + ... + 135383.

It is an arithmetic number, because the mean of its divisors is an integer number (270762).

2⁸¹²²⁸³ is an apocalyptic number.

812283 is a deficient number, since it is larger than the sum of its proper divisors (270765).

812283 is a wasteful number, since it uses less digits than its factorization.

812283 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 270764.

The product of its digits is 768, while the sum is 24.

The square root of 812283 is about 901.2674408853. The cubic root of 812283 is about 93.3044709508.

The spelling of 812283 in words is "eight hundred twelve thousand, two hundred eighty-three".