812273 has 18 divisors (see below), whose sum is σ = 1046178. Its totient is φ = 628320.

The previous prime is 812267. The next prime is 812281. The reversal of 812273 is 372218.

812273 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 717409 + 94864 = 847^2 + 308^2 .

It is not a de Polignac number, because 812273 - 2⁴ = 812257 is a prime.

It is a nialpdrome in base 7.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (812213) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 5861 + ... + 5997.

It is an arithmetic number, because the mean of its divisors is an integer number (58121).

2⁸¹²²⁷³ is an apocalyptic number.

It is an amenable number.

812273 is a deficient number, since it is larger than the sum of its proper divisors (233905).

812273 is a wasteful number, since it uses less digits than its factorization.

812273 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 173 (or 155 counting only the distinct ones).

The product of its digits is 672, while the sum is 23.

The square root of 812273 is about 901.2618931254. The cubic root of 812273 is about 93.3040880594.

The spelling of 812273 in words is "eight hundred twelve thousand, two hundred seventy-three".