9611605 has 8 divisors (see below), whose sum is σ = 11576664. Its totient is φ = 7660800.

The previous prime is 9611597. The next prime is 9611611. The reversal of 9611605 is 5061169.

It can be written as a sum of positive squares in 4 ways, for example, as 2604996 + 7006609 = 1614^2 + 2647^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 9611605 - 2³ = 9611597 is a prime.

It is a Duffinian number.

9611605 is a lucky number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2016 + ... + 4825.

It is an arithmetic number, because the mean of its divisors is an integer number (1447083).

Almost surely, 2^9611605 is an apocalyptic number.

It is an amenable number.

9611605 is a deficient number, since it is larger than the sum of its proper divisors (1965059).

9611605 is a wasteful number, since it uses less digits than its factorization.

9611605 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7127.

The product of its (nonzero) digits is 1620, while the sum is 28.

The square root of 9611605 is about 3100.2588601599. The cubic root of 9611605 is about 212.6173193002.

The spelling of 9611605 in words is "nine million, six hundred eleven thousand, six hundred five".