812168 has 16 divisors (see below), whose sum is σ = 1740480. Its totient is φ = 348048.

The previous prime is 812167. The next prime is 812173. The reversal of 812168 is 861218.

It is a Smith number, since the sum of its digits (26) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (812167) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7196 + ... + 7307.

It is an arithmetic number, because the mean of its divisors is an integer number (108780).

2⁸¹²¹⁶⁸ is an apocalyptic number.

It is an amenable number.

812168 is an abundant number, since it is smaller than the sum of its proper divisors (928312).

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

812168 is a wasteful number, since it uses less digits than its factorization.

812168 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14516 (or 14512 counting only the distinct ones).

The product of its digits is 768, while the sum is 26.

The square root of 812168 is about 901.2036395843. The cubic root of 812168 is about 93.3000675099.

It can be divided in two parts, 8 and 12168, that multiplied together give a square (97344 = 312²).

The spelling of 812168 in words is "eight hundred twelve thousand, one hundred sixty-eight".