812835404 has 6 divisors (see below), whose sum is σ = 1422461964. Its totient is φ = 406417700.

The previous prime is 812835391. The next prime is 812835497. The reversal of 812835404 is 404538218.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 101604422 + ... + 101604429.

It is an arithmetic number, because the mean of its divisors is an integer number (237076994).

Almost surely, 2^812835404 is an apocalyptic number.

It is an amenable number.

812835404 is a deficient number, since it is larger than the sum of its proper divisors (609626560).

812835404 is a wasteful number, since it uses less digits than its factorization.

812835404 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 203208855 (or 203208853 counting only the distinct ones).

The product of its (nonzero) digits is 30720, while the sum is 35.

The square root of 812835404 is about 28510.2683957903. The cubic root of 812835404 is about 933.2561714554.

The spelling of 812835404 in words is "eight hundred twelve million, eight hundred thirty-five thousand, four hundred four".