9798566 has 8 divisors (see below), whose sum is σ = 15471480. Its totient is φ = 4641408.

The previous prime is 9798563. The next prime is 9798589. The reversal of 9798566 is 6658979.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9798563) 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 3 ways as a sum of consecutive naturals, for example, 128891 + ... + 128966.

It is an arithmetic number, because the mean of its divisors is an integer number (1933935).

Almost surely, 2^9798566 is an apocalyptic number.

9798566 is a deficient number, since it is larger than the sum of its proper divisors (5672914).

9798566 is a wasteful number, since it uses less digits than its factorization.

9798566 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 257878.

The product of its digits is 816480, while the sum is 50.

The square root of 9798566 is about 3130.2661228720. The cubic root of 9798566 is about 213.9870577668.

The spelling of 9798566 in words is "nine million, seven hundred ninety-eight thousand, five hundred sixty-six".