89481609 has 24 divisors (see below), whose sum is σ = 147987840. Its totient is φ = 51038208.

The previous prime is 89481607. The next prime is 89481619. The reversal of 89481609 is 90618498.

It is not a de Polignac number, because 89481609 - 2¹ = 89481607 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (89481607) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 47524 + ... + 49370.

It is an arithmetic number, because the mean of its divisors is an integer number (6166160).

Almost surely, 2^89481609 is an apocalyptic number.

It is an amenable number.

89481609 is a deficient number, since it is larger than the sum of its proper divisors (58506231).

89481609 is a wasteful number, since it uses less digits than its factorization.

89481609 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2629 (or 2626 counting only the distinct ones).

The product of its (nonzero) digits is 124416, while the sum is 45.

The square root of 89481609 is about 9459.4719197215. The cubic root of 89481609 is about 447.2784026081.

The spelling of 89481609 in words is "eighty-nine million, four hundred eighty-one thousand, six hundred nine".