808812 has 24 divisors (see below), whose sum is σ = 2097200. Its totient is φ = 269568.

The previous prime is 808793. The next prime is 808837. The reversal of 808812 is 218808.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 808812.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3637 + ... + 3852.

2⁸⁰⁸⁸¹² is an apocalyptic number.

It is an amenable number.

808812 is an abundant number, since it is smaller than the sum of its proper divisors (1288388).

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

808812 is a wasteful number, since it uses less digits than its factorization.

808812 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7502 (or 7494 counting only the distinct ones).

The product of its (nonzero) digits is 1024, while the sum is 27.

The square root of 808812 is about 899.3397578224. The cubic root of 808812 is about 93.1713801370.

It can be divided in two parts, 8088 and 12, that added together give a square (8100 = 90²).

The spelling of 808812 in words is "eight hundred eight thousand, eight hundred twelve".