810808 has 16 divisors (see below), whose sum is σ = 1556280. Its totient is φ = 395808.

The previous prime is 810791. The next prime is 810809. The reversal of 810808 is 808018.

It is a happy number.

It is a super-2 number, since 2×810808² = 1314819225728, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (810809) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 835 + ... + 1522.

2⁸¹⁰⁸⁰⁸ is an apocalyptic number.

It is an amenable number.

810808 is a deficient number, since it is larger than the sum of its proper divisors (745472).

810808 is a wasteful number, since it uses less digits than its factorization.

810808 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2406 (or 2402 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 25.

The square root of 810808 is about 900.4487769996. The cubic root of 810808 is about 93.2479604812.

It can be divided in two parts, 8 and 10808, that added together give a square (10816 = 104²).

The spelling of 810808 in words is "eight hundred ten thousand, eight hundred eight".