11718216 has 32 divisors (see below), whose sum is σ = 32551200. Its totient is φ = 3906000.

The previous prime is 11718211. The next prime is 11718221. The reversal of 11718216 is 61281711.

It is an interprime number because it is at equal distance from previous prime (11718211) and next prime (11718221).

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a self number, because there is not a number n which added to its sum of digits gives 11718216.

It is not an unprimeable number, because it can be changed into a prime (11718211) by changing a digit.

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, 26910 + ... + 27341.

It is an arithmetic number, because the mean of its divisors is an integer number (1017225).

Almost surely, 2^11718216 is an apocalyptic number.

It is an amenable number.

11718216 is an abundant number, since it is smaller than the sum of its proper divisors (20832984).

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

11718216 is a wasteful number, since it uses less digits than its factorization.

11718216 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54266 (or 54256 counting only the distinct ones).

The product of its digits is 672, while the sum is 27.

The square root of 11718216 is about 3423.1879878266. The cubic root of 11718216 is about 227.1366239453.

Adding to 11718216 its reverse (61281711), we get a palindrome (72999927).

The spelling of 11718216 in words is "eleven million, seven hundred eighteen thousand, two hundred sixteen".