11988805 has 8 divisors (see below), whose sum is σ = 14428800. Its totient is φ = 9562896.

The previous prime is 11988799. The next prime is 11988811. The reversal of 11988805 is 50888911.

It is an interprime number because it is at equal distance from previous prime (11988799) and next prime (11988811).

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

It is a cyclic number.

It is not a de Polignac number, because 11988805 - 2⁹ = 11988293 is a prime.

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, 1545 + ... + 5134.

It is an arithmetic number, because the mean of its divisors is an integer number (1803600).

Almost surely, 2^11988805 is an apocalyptic number.

It is an amenable number.

11988805 is a deficient number, since it is larger than the sum of its proper divisors (2439995).

11988805 is an equidigital number, since it uses as much as digits as its factorization.

11988805 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7043.

The product of its (nonzero) digits is 23040, while the sum is 40.

The square root of 11988805 is about 3462.4853790305. The cubic root of 11988805 is about 228.8716314932.

The spelling of 11988805 in words is "eleven million, nine hundred eighty-eight thousand, eight hundred five".