804839854 has 24 divisors (see below), whose sum is σ = 1494026640. Its totient is φ = 318397248.

The previous prime is 804839839. The next prime is 804839863. The reversal of 804839854 is 458938408.

It is a junction number, because it is equal to n+sod(n) for n = 804839798 and 804839807.

It is a congruent number.

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 167719 + ... + 172450.

It is an arithmetic number, because the mean of its divisors is an integer number (62251110).

Almost surely, 2^804839854 is an apocalyptic number.

804839854 is a deficient number, since it is larger than the sum of its proper divisors (689186786).

804839854 is a wasteful number, since it uses less digits than its factorization.

804839854 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 340204 (or 340191 counting only the distinct ones).

The product of its (nonzero) digits is 1105920, while the sum is 49.

The square root of 804839854 is about 28369.6995754273. The cubic root of 804839854 is about 930.1860551946.

The spelling of 804839854 in words is "eight hundred four million, eight hundred thirty-nine thousand, eight hundred fifty-four".