11978008 has 32 divisors (see below), whose sum is σ = 25920000. Its totient is φ = 5082912.

The previous prime is 11977967. The next prime is 11978023. The reversal of 11978008 is 80087911.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 4993 + ... + 6991.

It is an arithmetic number, because the mean of its divisors is an integer number (810000).

Almost surely, 2^11978008 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 11978008, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (12960000).

11978008 is an abundant number, since it is smaller than the sum of its proper divisors (13941992).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

11978008 is a wasteful number, since it uses less digits than its factorization.

11978008 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2119 (or 2115 counting only the distinct ones).

The product of its (nonzero) digits is 4032, while the sum is 34.

The square root of 11978008 is about 3460.9258876780. The cubic root of 11978008 is about 228.8029043431.

The spelling of 11978008 in words is "eleven million, nine hundred seventy-eight thousand, eight".