812196 has 72 divisors (see below), whose sum is σ = 2568384. Its totient is φ = 210240.

The previous prime is 812191. The next prime is 812213. The reversal of 812196 is 691218.

It is not an unprimeable number, because it can be changed into a prime (812191) by changing a digit.

812196 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 23 ways as a sum of consecutive naturals, for example, 2626 + ... + 2918.

It is an arithmetic number, because the mean of its divisors is an integer number (35672).

2⁸¹²¹⁹⁶ is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 812196, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1284192).

812196 is an abundant number, since it is smaller than the sum of its proper divisors (1756188).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

812196 is a wasteful number, since it uses less digits than its factorization.

812196 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 321 (or 316 counting only the distinct ones).

The product of its digits is 864, while the sum is 27.

The square root of 812196 is about 901.2191742301. The cubic root of 812196 is about 93.3011396903.

It can be divided in two parts, 81219 and 6, that added together give a square (81225 = 285²).

The spelling of 812196 in words is "eight hundred twelve thousand, one hundred ninety-six".