9906605 has 8 divisors (see below), whose sum is σ = 11923200. Its totient is φ = 7901776.

The previous prime is 9906599. The next prime is 9906653. The reversal of 9906605 is 5066099.

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

It is a cyclic number.

It is not a de Polignac number, because 9906605 - 2⁸ = 9906349 is a prime.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 965 + ... + 4554.

It is an arithmetic number, because the mean of its divisors is an integer number (1490400).

Almost surely, 2^9906605 is an apocalyptic number.

It is an amenable number.

9906605 is a deficient number, since it is larger than the sum of its proper divisors (2016595).

9906605 is a wasteful number, since it uses less digits than its factorization.

9906605 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5883.

The product of its (nonzero) digits is 14580, while the sum is 35.

The square root of 9906605 is about 3147.4759729027. The cubic root of 9906605 is about 214.7706586386.

The spelling of 9906605 in words is "nine million, nine hundred six thousand, six hundred five".