89598561 has 24 divisors (see below), whose sum is σ = 131057280. Its totient is φ = 54415296.

The previous prime is 89598559. The next prime is 89598563. The reversal of 89598561 is 16589598.

It is an interprime number because it is at equal distance from previous prime (89598559) and next prime (89598563).

It is not a de Polignac number, because 89598561 - 2¹ = 89598559 is a prime.

It is not an unprimeable number, because it can be changed into a prime (89598563) by changing a digit.

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 in 23 ways as a sum of consecutive naturals, for example, 38935 + ... + 41171.

It is an arithmetic number, because the mean of its divisors is an integer number (5460720).

Almost surely, 2^89598561 is an apocalyptic number.

It is an amenable number.

89598561 is a deficient number, since it is larger than the sum of its proper divisors (41458719).

89598561 is a wasteful number, since it uses less digits than its factorization.

89598561 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2345 (or 2332 counting only the distinct ones).

The product of its digits is 777600, while the sum is 51.

The square root of 89598561 is about 9465.6516415934. The cubic root of 89598561 is about 447.4731812939.

The spelling of 89598561 in words is "eighty-nine million, five hundred ninety-eight thousand, five hundred sixty-one".