11797218 has 64 divisors (see below), whose sum is σ = 28304640. Its totient is φ = 3628800.

The previous prime is 11797213. The next prime is 11797231. The reversal of 11797218 is 81279711.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (11797213) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 65088 + ... + 65268.

It is an arithmetic number, because the mean of its divisors is an integer number (442260).

Almost surely, 2^11797218 is an apocalyptic number.

11797218 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 11797218, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14152320).

11797218 is an abundant number, since it is smaller than the sum of its proper divisors (16507422).

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

11797218 is a wasteful number, since it uses less digits than its factorization.

11797218 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 280 (or 274 counting only the distinct ones).

The product of its digits is 7056, while the sum is 36.

The square root of 11797218 is about 3434.7078478380. The cubic root of 11797218 is about 227.6459185441.

The spelling of 11797218 in words is "eleven million, seven hundred ninety-seven thousand, two hundred eighteen".