11832009 has 16 divisors (see below), whose sum is σ = 18450432. Its totient is φ = 6603408.

The previous prime is 11831977. The next prime is 11832011. The reversal of 11832009 is 90023811.

It is not a de Polignac number, because 11832009 - 2⁵ = 11831977 is a prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 11832009.

It is not an unprimeable number, because it can be changed into a prime (11832089) 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 15 ways as a sum of consecutive naturals, for example, 5649 + ... + 7454.

It is an arithmetic number, because the mean of its divisors is an integer number (1153152).

Almost surely, 2^11832009 is an apocalyptic number.

It is an amenable number.

11832009 is a deficient number, since it is larger than the sum of its proper divisors (6618423).

11832009 is a wasteful number, since it uses less digits than its factorization.

11832009 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13156.

The product of its (nonzero) digits is 432, while the sum is 24.

The square root of 11832009 is about 3439.7687422267. The cubic root of 11832009 is about 227.8694813160.

The spelling of 11832009 in words is "eleven million, eight hundred thirty-two thousand, nine".