11796209 has 4 divisors (see below), whose sum is σ = 11938416. Its totient is φ = 11654004.

The previous prime is 11796203. The next prime is 11796223. The reversal of 11796209 is 90269711.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11796209 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11796203) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 70979 + ... + 71144.

It is an arithmetic number, because the mean of its divisors is an integer number (2984604).

Almost surely, 2^11796209 is an apocalyptic number.

It is an amenable number.

11796209 is a deficient number, since it is larger than the sum of its proper divisors (142207).

11796209 is an equidigital number, since it uses as much as digits as its factorization.

11796209 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 142206.

The product of its (nonzero) digits is 6804, while the sum is 35.

The square root of 11796209 is about 3434.5609617533. The cubic root of 11796209 is about 227.6394282772.

The spelling of 11796209 in words is "eleven million, seven hundred ninety-six thousand, two hundred nine".