810912 has 24 divisors (see below), whose sum is σ = 2128896. Its totient is φ = 270272.

The previous prime is 810907. The next prime is 810913. The reversal of 810912 is 219018.

810912 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (24).

It is not an unprimeable number, because it can be changed into a prime (810913) by changing a digit.

810912 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, 4128 + ... + 4319.

It is an arithmetic number, because the mean of its divisors is an integer number (88704).

2⁸¹⁰⁹¹² is an apocalyptic number.

It is an amenable number.

810912 is an abundant number, since it is smaller than the sum of its proper divisors (1317984).

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

810912 is a wasteful number, since it uses less digits than its factorization.

810912 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8460 (or 8452 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 21.

The square root of 810912 is about 900.5065241296. The cubic root of 810912 is about 93.2519471930.

It can be divided in two parts, 810 and 912, that multiplied together give a triangular number (738720 = T₁₂₁₅).

The spelling of 810912 in words is "eight hundred ten thousand, nine hundred twelve".