11006861 has 2 divisors, whose sum is σ = 11006862. Its totient is φ = 11006860.

The previous prime is 11006851. The next prime is 11006869. The reversal of 11006861 is 16860011.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 9030025 + 1976836 = 3005^2 + 1406^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11006861 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11006869) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5503430 + 5503431.

It is an arithmetic number, because the mean of its divisors is an integer number (5503431).

Almost surely, 2^11006861 is an apocalyptic number.

It is an amenable number.

11006861 is a deficient number, since it is larger than the sum of its proper divisors (1).

11006861 is an equidigital number, since it uses as much as digits as its factorization.

11006861 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 288, while the sum is 23.

The square root of 11006861 is about 3317.6589637876. The cubic root of 11006861 is about 222.4442380147. Note that the first 3 decimals are identical.

Adding to 11006861 its reverse (16860011), we get a palindrome (27866872).

The spelling of 11006861 in words is "eleven million, six thousand, eight hundred sixty-one".