9805804 has 12 divisors (see below), whose sum is σ = 18169704. Its totient is φ = 4614464.

The previous prime is 9805793. The next prime is 9805819. The reversal of 9805804 is 4085089.

It is a Harshad number since it is a multiple of its sum of digits (34).

It is a self number, because there is not a number n which added to its sum of digits gives 9805804.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 72034 + ... + 72169.

It is an arithmetic number, because the mean of its divisors is an integer number (1514142).

Almost surely, 2^9805804 is an apocalyptic number.

It is an amenable number.

9805804 is a deficient number, since it is larger than the sum of its proper divisors (8363900).

9805804 is a wasteful number, since it uses less digits than its factorization.

9805804 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 144224 (or 144222 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 34.

The square root of 9805804 is about 3131.4220411819. The cubic root of 9805804 is about 214.0397340841.

It can be divided in two parts, 9805 and 804, that added together give a square (10609 = 103²).

The spelling of 9805804 in words is "nine million, eight hundred five thousand, eight hundred four".