9081605 has 16 divisors (see below), whose sum is σ = 12117504. Its totient is φ = 6488640.

The previous prime is 9081599. The next prime is 9081607. The reversal of 9081605 is 5061809.

It is not a de Polignac number, because 9081605 - 2²² = 4887301 is a prime.

It is a Smith number, since the sum of its digits (29) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9081607) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 239 + ... + 4268.

It is an arithmetic number, because the mean of its divisors is an integer number (757344).

Almost surely, 2^9081605 is an apocalyptic number.

It is an amenable number.

9081605 is a deficient number, since it is larger than the sum of its proper divisors (3035899).

9081605 is a wasteful number, since it uses less digits than its factorization.

9081605 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4556.

The product of its (nonzero) digits is 2160, while the sum is 29.

The square root of 9081605 is about 3013.5701418749. The cubic root of 9081605 is about 208.6351777494.

The spelling of 9081605 in words is "nine million, eighty-one thousand, six hundred five".