9598561 has 24 divisors (see below), whose sum is σ = 11819520. Its totient is φ = 7761600.

The previous prime is 9598543. The next prime is 9598573. The reversal of 9598561 is 1658959.

It is a happy number.

It is not a de Polignac number, because 9598561 - 2⁵ = 9598529 is a prime.

It is a Smith number, since the sum of its digits (43) coincides with the sum of the digits of its prime factors.

It is a Duffinian number.

9598561 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (9598541) 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 23 ways as a sum of consecutive naturals, for example, 107805 + ... + 107893.

It is an arithmetic number, because the mean of its divisors is an integer number (492480).

Almost surely, 2^9598561 is an apocalyptic number.

It is an amenable number.

9598561 is a deficient number, since it is larger than the sum of its proper divisors (2220959).

9598561 is a wasteful number, since it uses less digits than its factorization.

9598561 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 205 (or 198 counting only the distinct ones).

The product of its digits is 97200, while the sum is 43.

The square root of 9598561 is about 3098.1544506367. The cubic root of 9598561 is about 212.5210940998.

The spelling of 9598561 in words is "nine million, five hundred ninety-eight thousand, five hundred sixty-one".