11818217 has 2 divisors, whose sum is σ = 11818218. Its totient is φ = 11818216.

The previous prime is 11818211. The next prime is 11818229. The reversal of 11818217 is 71281811.

11818217 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 6885376 + 4932841 = 2624^2 + 2221^2 .

It is a cyclic number.

It is not a de Polignac number, because 11818217 - 2⁸ = 11817961 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 11818217.

It is not a weakly prime, because it can be changed into another prime (11818211) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5909108 + 5909109.

It is an arithmetic number, because the mean of its divisors is an integer number (5909109).

Almost surely, 2^11818217 is an apocalyptic number.

It is an amenable number.

11818217 is a deficient number, since it is larger than the sum of its proper divisors (1).

11818217 is an equidigital number, since it uses as much as digits as its factorization.

11818217 is an evil number, because the sum of its binary digits is even.

The product of its digits is 896, while the sum is 29.

The square root of 11818217 is about 3437.7633717288. The cubic root of 11818217 is about 227.7809080849.

The spelling of 11818217 in words is "eleven million, eight hundred eighteen thousand, two hundred seventeen".