89408065 has 16 divisors (see below), whose sum is σ = 109002240. Its totient is φ = 70392960.

The previous prime is 89408047. The next prime is 89408087. The reversal of 89408065 is 56080498.

It is a de Polignac number, because none of the positive numbers 2^k-89408065 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 146992 + ... + 147598.

It is an arithmetic number, because the mean of its divisors is an integer number (6812640).

Almost surely, 2^89408065 is an apocalyptic number.

It is an amenable number.

89408065 is a deficient number, since it is larger than the sum of its proper divisors (19594175).

89408065 is a wasteful number, since it uses less digits than its factorization.

89408065 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1032.

The product of its (nonzero) digits is 69120, while the sum is 40.

The square root of 89408065 is about 9455.5838000623. The cubic root of 89408065 is about 447.1558312058.

The spelling of 89408065 in words is "eighty-nine million, four hundred eight thousand, sixty-five".