11906609 has 16 divisors (see below), whose sum is σ = 14261184. Its totient is φ = 9796800.

The previous prime is 11906591. The next prime is 11906623. The reversal of 11906609 is 90660911.

It is a happy number.

It is not a de Polignac number, because 11906609 - 2⁸ = 11906353 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11906669) 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, 6794 + ... + 8364.

It is an arithmetic number, because the mean of its divisors is an integer number (891324).

Almost surely, 2^11906609 is an apocalyptic number.

It is an amenable number.

11906609 is a deficient number, since it is larger than the sum of its proper divisors (2354575).

11906609 is a wasteful number, since it uses less digits than its factorization.

11906609 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1648.

The product of its (nonzero) digits is 2916, while the sum is 32.

The square root of 11906609 is about 3450.5954558598. The cubic root of 11906609 is about 228.3473787987.

The spelling of 11906609 in words is "eleven million, nine hundred six thousand, six hundred nine".