11486861 has 2 divisors, whose sum is σ = 11486862. Its totient is φ = 11486860.

The previous prime is 11486851. The next prime is 11486863. The reversal of 11486861 is 16868411.

It is a happy number.

11486861 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 7562500 + 3924361 = 2750^2 + 1981^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11486861 is a prime.

It is a Sophie Germain prime.

Together with 11486863, it forms a pair of twin primes.

It is a Chen prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11486863) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5743430 + 5743431.

It is an arithmetic number, because the mean of its divisors is an integer number (5743431).

Almost surely, 2^11486861 is an apocalyptic number.

It is an amenable number.

11486861 is a deficient number, since it is larger than the sum of its proper divisors (1).

11486861 is an equidigital number, since it uses as much as digits as its factorization.

11486861 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 9216, while the sum is 35.

The square root of 11486861 is about 3389.2271980497. The cubic root of 11486861 is about 225.6318764897.

The spelling of 11486861 in words is "eleven million, four hundred eighty-six thousand, eight hundred sixty-one".