11998216 has 16 divisors (see below), whose sum is σ = 22533840. Its totient is φ = 5989200.

The previous prime is 11998213. The next prime is 11998223. The reversal of 11998216 is 61289911.

It is not an unprimeable number, because it can be changed into a prime (11998213) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7695 + ... + 9121.

It is an arithmetic number, because the mean of its divisors is an integer number (1408365).

Almost surely, 2^11998216 is an apocalyptic number.

It is an amenable number.

11998216 is a deficient number, since it is larger than the sum of its proper divisors (10535624).

11998216 is a wasteful number, since it uses less digits than its factorization.

11998216 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2484 (or 2480 counting only the distinct ones).

The product of its digits is 7776, while the sum is 37.

The square root of 11998216 is about 3463.8441073466. The cubic root of 11998216 is about 228.9315025583.

The spelling of 11998216 in words is "eleven million, nine hundred ninety-eight thousand, two hundred sixteen".