11820008 has 8 divisors (see below), whose sum is σ = 22162530. Its totient is φ = 5910000.

The previous prime is 11819993. The next prime is 11820019. The reversal of 11820008 is 80002811.

It can be written as a sum of positive squares in only one way, i.e., 8868484 + 2951524 = 2978^2 + 1718^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 738743 + ... + 738758.

Almost surely, 2^11820008 is an apocalyptic number.

It is an amenable number.

11820008 is a deficient number, since it is larger than the sum of its proper divisors (10342522).

11820008 is a wasteful number, since it uses less digits than its factorization.

11820008 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1477507 (or 1477503 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 20.

The square root of 11820008 is about 3438.0238509935. The cubic root of 11820008 is about 227.7924139096.

Adding to 11820008 its reverse (80002811), we get a palindrome (91822819).

The spelling of 11820008 in words is "eleven million, eight hundred twenty thousand, eight".