11308809 has 8 divisors (see below), whose sum is σ = 15291072. Its totient is φ = 7432880.

The previous prime is 11308807. The next prime is 11308813. The reversal of 11308809 is 90880311.

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 11308809 - 2¹ = 11308807 is a prime.

It is not an unprimeable number, because it can be changed into a prime (11308807) by changing a digit.

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, 26334 + ... + 26759.

It is an arithmetic number, because the mean of its divisors is an integer number (1911384).

Almost surely, 2^11308809 is an apocalyptic number.

It is an amenable number.

11308809 is a deficient number, since it is larger than the sum of its proper divisors (3982263).

11308809 is an equidigital number, since it uses as much as digits as its factorization.

11308809 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53167.

The product of its (nonzero) digits is 1728, while the sum is 30.

The square root of 11308809 is about 3362.8572672654. The cubic root of 11308809 is about 224.4599988585.

The spelling of 11308809 in words is "eleven million, three hundred eight thousand, eight hundred nine".