804421875 has 42 divisors (see below), whose sum is σ = 1350998332. Its totient is φ = 425750000.

The previous prime is 804421859. The next prime is 804421889. The reversal of 804421875 is 578124408.

It is a happy number.

It is not a de Polignac number, because 804421875 - 2⁴ = 804421859 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 41 ways as a sum of consecutive naturals, for example, 6140560 + ... + 6140690.

Almost surely, 2^804421875 is an apocalyptic number.

804421875 is a deficient number, since it is larger than the sum of its proper divisors (546576457).

804421875 is an frugal number, since it uses more digits than its factorization.

804421875 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 295 (or 139 counting only the distinct ones).

The product of its (nonzero) digits is 71680, while the sum is 39.

The square root of 804421875 is about 28362.3319739404. The cubic root of 804421875 is about 930.0250022183.

The spelling of 804421875 in words is "eight hundred four million, four hundred twenty-one thousand, eight hundred seventy-five".