89559681 has 8 divisors (see below), whose sum is σ = 119600064. Its totient is φ = 59612880.

The previous prime is 89559641. The next prime is 89559719. The reversal of 89559681 is 18695598.

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

It is not a de Polignac number, because 89559681 - 2¹⁰ = 89558657 is a prime.

It is a super-2 number, since 2×89559681² = 16041872921643522, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (89559641) 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 7 ways as a sum of consecutive naturals, for example, 21130 + ... + 25011.

It is an arithmetic number, because the mean of its divisors is an integer number (14950008).

Almost surely, 2^89559681 is an apocalyptic number.

It is an amenable number.

89559681 is a deficient number, since it is larger than the sum of its proper divisors (30040383).

89559681 is a wasteful number, since it uses less digits than its factorization.

89559681 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46791.

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

The square root of 89559681 is about 9463.5976774163. The cubic root of 89559681 is about 447.4084470905.

The spelling of 89559681 in words is "eighty-nine million, five hundred fifty-nine thousand, six hundred eighty-one".