804819123 has 6 divisors (see below), whose sum is σ = 1162516524. Its totient is φ = 536546076.

The previous prime is 804819101. The next prime is 804819131. The reversal of 804819123 is 321918408.

It is not a de Polignac number, because 804819123 - 2¹⁰ = 804818099 is a prime.

It is not an unprimeable number, because it can be changed into a prime (804819133) by changing a digit.

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 5 ways as a sum of consecutive naturals, for example, 44712165 + ... + 44712182.

It is an arithmetic number, because the mean of its divisors is an integer number (193752754).

Almost surely, 2^804819123 is an apocalyptic number.

804819123 is a deficient number, since it is larger than the sum of its proper divisors (357697401).

804819123 is a wasteful number, since it uses less digits than its factorization.

804819123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 89424353 (or 89424350 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 36.

The square root of 804819123 is about 28369.3342008585. The cubic root of 804819123 is about 930.1780685736.

The spelling of 804819123 in words is "eight hundred four million, eight hundred nineteen thousand, one hundred twenty-three".