11716909 has 4 divisors (see below), whose sum is σ = 11833020. Its totient is φ = 11600800.

The previous prime is 11716897. The next prime is 11716933. The reversal of 11716909 is 90961711.

11716909 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 6325225 + 5391684 = 2515^2 + 2322^2 .

It is a cyclic number.

It is not a de Polignac number, because 11716909 - 2¹³ = 11708717 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11716949) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 57904 + ... + 58105.

It is an arithmetic number, because the mean of its divisors is an integer number (2958255).

Almost surely, 2^11716909 is an apocalyptic number.

It is an amenable number.

11716909 is a deficient number, since it is larger than the sum of its proper divisors (116111).

11716909 is a wasteful number, since it uses less digits than its factorization.

11716909 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 116110.

The product of its (nonzero) digits is 3402, while the sum is 34.

The square root of 11716909 is about 3422.9970785848. The cubic root of 11716909 is about 227.1281790135.

The spelling of 11716909 in words is "eleven million, seven hundred sixteen thousand, nine hundred nine".