11349809 has 4 divisors (see below), whose sum is σ = 11362404. Its totient is φ = 11337216.

The previous prime is 11349803. The next prime is 11349827. The reversal of 11349809 is 90894311.

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 7728400 + 3621409 = 2780^2 + 1903^2 .

It is a cyclic number.

It is not a de Polignac number, because 11349809 - 2⁸ = 11349553 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (11349803) 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 3 ways as a sum of consecutive naturals, for example, 4832 + ... + 6785.

It is an arithmetic number, because the mean of its divisors is an integer number (2840601).

Almost surely, 2^11349809 is an apocalyptic number.

It is an amenable number.

11349809 is a deficient number, since it is larger than the sum of its proper divisors (12595).

11349809 is an equidigital number, since it uses as much as digits as its factorization.

11349809 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12594.

The product of its (nonzero) digits is 7776, while the sum is 35.

The square root of 11349809 is about 3368.9477585739. The cubic root of 11349809 is about 224.7309310338.

The spelling of 11349809 in words is "eleven million, three hundred forty-nine thousand, eight hundred nine".