810704 has 20 divisors (see below), whose sum is σ = 1639776. Its totient is φ = 387552.

The previous prime is 810697. The next prime is 810737. The reversal of 810704 is 407018.

It is a happy number.

810704 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Smith number, since the sum of its digits (20) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is an unprimeable number.

810704 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, 734 + ... + 1469.

2⁸¹⁰⁷⁰⁴ is an apocalyptic number.

It is an amenable number.

810704 is an abundant number, since it is smaller than the sum of its proper divisors (829072).

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

810704 is a wasteful number, since it uses less digits than its factorization.

810704 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2234 (or 2228 counting only the distinct ones).

The product of its (nonzero) digits is 224, while the sum is 20.

The square root of 810704 is about 900.3910261659. The cubic root of 810704 is about 93.2439734286.

The spelling of 810704 in words is "eight hundred ten thousand, seven hundred four".