89660589 has 16 divisors (see below), whose sum is σ = 121919040. Its totient is φ = 58593920.

The previous prime is 89660581. The next prime is 89660617. The reversal of 89660589 is 98506698.

It is a cyclic number.

It is not a de Polignac number, because 89660589 - 2³ = 89660581 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (89660581) 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 15 ways as a sum of consecutive naturals, for example, 108799 + ... + 109619.

It is an arithmetic number, because the mean of its divisors is an integer number (7619940).

Almost surely, 2^89660589 is an apocalyptic number.

It is an amenable number.

89660589 is a deficient number, since it is larger than the sum of its proper divisors (32258451).

89660589 is a wasteful number, since it uses less digits than its factorization.

89660589 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1500.

The product of its (nonzero) digits is 933120, while the sum is 51.

The square root of 89660589 is about 9468.9275527908. The cubic root of 89660589 is about 447.5764175647.

The spelling of 89660589 in words is "eighty-nine million, six hundred sixty thousand, five hundred eighty-nine".