9780804 has 48 divisors (see below), whose sum is σ = 27666240. Its totient is φ = 2963520.

The previous prime is 9780787. The next prime is 9780809. The reversal of 9780804 is 4080879.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (9780809) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2929 + ... + 5304.

It is an arithmetic number, because the mean of its divisors is an integer number (576380).

Almost surely, 2^9780804 is an apocalyptic number.

It is an amenable number.

9780804 is an abundant number, since it is smaller than the sum of its proper divisors (17885436).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

9780804 is a wasteful number, since it uses less digits than its factorization.

9780804 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8257 (or 8249 counting only the distinct ones).

The product of its (nonzero) digits is 16128, while the sum is 36.

The square root of 9780804 is about 3127.4276970060. The cubic root of 9780804 is about 213.8576804325.

The spelling of 9780804 in words is "nine million, seven hundred eighty thousand, eight hundred four".