11988798 has 8 divisors (see below), whose sum is σ = 23977608. Its totient is φ = 3996264.

The previous prime is 11988751. The next prime is 11988799. The reversal of 11988798 is 89788911.

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

11988798 is an admirable number.

It is a self number, because there is not a number n which added to its sum of digits gives 11988798.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11988799) 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, 999061 + ... + 999072.

It is an arithmetic number, because the mean of its divisors is an integer number (2997201).

Almost surely, 2^11988798 is an apocalyptic number.

11988798 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

11988798 is a wasteful number, since it uses less digits than its factorization.

11988798 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1998138.

The product of its digits is 290304, while the sum is 51.

The square root of 11988798 is about 3462.4843681958. The cubic root of 11988798 is about 228.8715869488.

The spelling of 11988798 in words is "eleven million, nine hundred eighty-eight thousand, seven hundred ninety-eight".