11047409 has 8 divisors (see below), whose sum is σ = 11376288. Its totient is φ = 10721440.

The previous prime is 11047403. The next prime is 11047411. The reversal of 11047409 is 90474011.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11047409 is a prime.

It is a super-2 number, since 2×11047409² = 244090491226562, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11047403) 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, 8714 + ... + 9900.

It is an arithmetic number, because the mean of its divisors is an integer number (1422036).

Almost surely, 2^11047409 is an apocalyptic number.

It is an amenable number.

11047409 is a deficient number, since it is larger than the sum of its proper divisors (328879).

11047409 is a wasteful number, since it uses less digits than its factorization.

11047409 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1455.

The product of its (nonzero) digits is 1008, while the sum is 26.

The square root of 11047409 is about 3323.7642816542. The cubic root of 11047409 is about 222.7170562073.

The spelling of 11047409 in words is "eleven million, forty-seven thousand, four hundred nine".