812236 has 12 divisors (see below), whose sum is σ = 1428840. Its totient is φ = 404000.

The previous prime is 812233. The next prime is 812249. The reversal of 812236 is 632218.

It is not an unprimeable number, because it can be changed into a prime (812233) 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, 600 + ... + 1408.

It is an arithmetic number, because the mean of its divisors is an integer number (119070).

2⁸¹²²³⁶ is an apocalyptic number.

It is an amenable number.

812236 is a deficient number, since it is larger than the sum of its proper divisors (616604).

812236 is a wasteful number, since it uses less digits than its factorization.

812236 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1064 (or 1062 counting only the distinct ones).

The product of its digits is 576, while the sum is 22.

The square root of 812236 is about 901.2413661168. The cubic root of 812236 is about 93.3026713339.

The spelling of 812236 in words is "eight hundred twelve thousand, two hundred thirty-six".