11489009 has 12 divisors (see below), whose sum is σ = 13433664. Its totient is φ = 9625224.

The previous prime is 11488999. The next prime is 11489021. The reversal of 11489009 is 90098411.

It is not a de Polignac number, because 11489009 - 2⁴ = 11488993 is a prime.

It is a hoax number, since the sum of its digits (32) coincides with the sum of the digits of its distinct prime factors.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11489039) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 15092 + ... + 15834.

It is an arithmetic number, because the mean of its divisors is an integer number (1119472).

Almost surely, 2^11489009 is an apocalyptic number.

It is an amenable number.

11489009 is a deficient number, since it is larger than the sum of its proper divisors (1944655).

11489009 is an frugal number, since it uses more digits than its factorization.

11489009 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 844 (or 797 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 32.

The square root of 11489009 is about 3389.5440696353. The cubic root of 11489009 is about 225.6459397186.

The spelling of 11489009 in words is "eleven million, four hundred eighty-nine thousand, nine".