804680 has 16 divisors (see below), whose sum is σ = 1810620. Its totient is φ = 321856.

The previous prime is 804653. The next prime is 804689. The reversal of 804680 is 86408.

It can be written as a sum of positive squares in 2 ways, for example, as 763876 + 40804 = 874^2 + 202^2 .

It is a plaindrome in base 13.

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

804680 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, 10019 + ... + 10098.

2⁸⁰⁴⁶⁸⁰ is an apocalyptic number.

It is an amenable number.

804680 is an abundant number, since it is smaller than the sum of its proper divisors (1005940).

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

804680 is a wasteful number, since it uses less digits than its factorization.

804680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20128 (or 20124 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 26.

The square root of 804680 is about 897.0395754926. The cubic root of 804680 is about 93.0124467867.

The spelling of 804680 in words is "eight hundred four thousand, six hundred eighty".