812108 has 12 divisors (see below), whose sum is σ = 1550472. Its totient is φ = 369120.

The previous prime is 812101. The next prime is 812129. The reversal of 812108 is 801218.

It is a self number, because there is not a number n which added to its sum of digits gives 812108.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 812108.

It is not an unprimeable number, because it can be changed into a prime (812101) by changing a digit.

812108 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, 9185 + ... + 9272.

It is an arithmetic number, because the mean of its divisors is an integer number (129206).

2⁸¹²¹⁰⁸ is an apocalyptic number.

It is an amenable number.

812108 is a deficient number, since it is larger than the sum of its proper divisors (738364).

812108 is a wasteful number, since it uses less digits than its factorization.

812108 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18472 (or 18470 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 20.

The square root of 812108 is about 901.1703501558. The cubic root of 812108 is about 93.2977698975.

It can be divided in two parts, 81210 and 8, that added together give a palindrome (81218).

The spelling of 812108 in words is "eight hundred twelve thousand, one hundred eight".