804008030721 has 16 divisors (see below), whose sum is σ = 1225178427264. Its totient is φ = 459424410624.

The previous prime is 804008030701. The next prime is 804008030773. The reversal of 804008030721 is 127030800408.

It is not a de Polignac number, because 804008030721 - 2¹⁷ = 804007899649 is a prime.

It is not an unprimeable number, because it can be changed into a prime (804008030701) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 860001 + ... + 1532193.

It is an arithmetic number, because the mean of its divisors is an integer number (76573651704).

Almost surely, 2^804008030721 is an apocalyptic number.

It is an amenable number.

804008030721 is a deficient number, since it is larger than the sum of its proper divisors (421170396543).

804008030721 is a wasteful number, since it uses less digits than its factorization.

804008030721 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 729160.

The product of its (nonzero) digits is 10752, while the sum is 33.

The spelling of 804008030721 in words is "eight hundred four billion, eight million, thirty thousand, seven hundred twenty-one".