804287680 has 112 divisors (see below), whose sum is σ = 2317674816. Its totient is φ = 259522560.

The previous prime is 804287657. The next prime is 804287683. The reversal of 804287680 is 86782408.

804287680 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 (112).

It is not an unprimeable number, because it can be changed into a prime (804287683) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 27520 + ... + 48640.

Almost surely, 2^804287680 is an apocalyptic number.

804287680 is a gapful number since it is divisible by the number (80) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 804287680, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1158837408).

804287680 is an abundant number, since it is smaller than the sum of its proper divisors (1513387136).

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

804287680 is a wasteful number, since it uses less digits than its factorization.

804287680 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21162 (or 21152 counting only the distinct ones).

The product of its (nonzero) digits is 172032, while the sum is 43.

The square root of 804287680 is about 28359.9661494861. The cubic root of 804287680 is about 929.9732832345.

The spelling of 804287680 in words is "eight hundred four million, two hundred eighty-seven thousand, six hundred eighty".