89089665 has 16 divisors (see below), whose sum is σ = 162907008. Its totient is φ = 40726656.

The previous prime is 89089621. The next prime is 89089669. The reversal of 89089665 is 56698098.

It is not a de Polignac number, because 89089665 - 2¹⁹ = 88565377 is a prime.

It is not an unprimeable number, because it can be changed into a prime (89089669) 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, 424132 + ... + 424341.

It is an arithmetic number, because the mean of its divisors is an integer number (10181688).

Almost surely, 2^89089665 is an apocalyptic number.

It is an amenable number.

89089665 is a deficient number, since it is larger than the sum of its proper divisors (73817343).

89089665 is a wasteful number, since it uses less digits than its factorization.

89089665 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 848488.

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

The square root of 89089665 is about 9438.7321712188. The cubic root of 89089665 is about 446.6243960766.

The spelling of 89089665 in words is "eighty-nine million, eighty-nine thousand, six hundred sixty-five".