812426 has 8 divisors (see below), whose sum is σ = 1222884. Its totient is φ = 404800.

The previous prime is 812401. The next prime is 812431. The reversal of 812426 is 624218.

It can be written as a sum of positive squares in 2 ways, for example, as 811801 + 625 = 901^2 + 25^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

812426 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 296 + ... + 1308.

2⁸¹²⁴²⁶ is an apocalyptic number.

812426 is a deficient number, since it is larger than the sum of its proper divisors (410458).

812426 is a wasteful number, since it uses less digits than its factorization.

812426 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1416.

The product of its digits is 768, while the sum is 23.

The square root of 812426 is about 901.3467701168. The cubic root of 812426 is about 93.3099459542.

The spelling of 812426 in words is "eight hundred twelve thousand, four hundred twenty-six".