11808805 has 8 divisors (see below), whose sum is σ = 14191992. Its totient is φ = 9432768.

The previous prime is 11808793. The next prime is 11808833. The reversal of 11808805 is 50880811.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 2377764 + 9431041 = 1542^2 + 3071^2 .

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-11808805 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3039 + ... + 5731.

It is an arithmetic number, because the mean of its divisors is an integer number (1773999).

Almost surely, 2^11808805 is an apocalyptic number.

It is an amenable number.

11808805 is a deficient number, since it is larger than the sum of its proper divisors (2383187).

11808805 is an equidigital number, since it uses as much as digits as its factorization.

11808805 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3575.

The product of its (nonzero) digits is 2560, while the sum is 31.

The square root of 11808805 is about 3436.3941857709. The cubic root of 11808805 is about 227.7204239672.

The spelling of 11808805 in words is "eleven million, eight hundred eight thousand, eight hundred five".