804686 has 4 divisors (see below), whose sum is σ = 1207032. Its totient is φ = 402342.

The previous prime is 804653. The next prime is 804689. The reversal of 804686 is 686408.

804686 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is an Ulam number.

It is a plaindrome in base 13.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (804689) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 201170 + ... + 201173.

It is an arithmetic number, because the mean of its divisors is an integer number (301758).

2⁸⁰⁴⁶⁸⁶ is an apocalyptic number.

804686 is a deficient number, since it is larger than the sum of its proper divisors (402346).

804686 is a wasteful number, since it uses less digits than its factorization.

804686 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 402345.

The product of its (nonzero) digits is 9216, while the sum is 32.

The square root of 804686 is about 897.0429198205. The cubic root of 804686 is about 93.0126779649.

The spelling of 804686 in words is "eight hundred four thousand, six hundred eighty-six".