812229 has 16 divisors (see below), whose sum is σ = 1196544. Its totient is φ = 486000.

The previous prime is 812221. The next prime is 812233. The reversal of 812229 is 922218.

It is not a de Polignac number, because 812229 - 2³ = 812221 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 812199 and 812208.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (812221) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4902 + ... + 5064.

It is an arithmetic number, because the mean of its divisors is an integer number (74784).

2⁸¹²²²⁹ is an apocalyptic number.

It is an amenable number.

812229 is a deficient number, since it is larger than the sum of its proper divisors (384315).

812229 is a wasteful number, since it uses less digits than its factorization.

812229 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 328.

The product of its digits is 576, while the sum is 24.

The square root of 812229 is about 901.2374825760. The cubic root of 812229 is about 93.3024032999.

The spelling of 812229 in words is "eight hundred twelve thousand, two hundred twenty-nine".