10947889 has 2 divisors, whose sum is σ = 10947890. Its totient is φ = 10947888.

The previous prime is 10947841. The next prime is 10947941. The reversal of 10947889 is 98874901.

It is a happy number.

10947889 is digitally balanced in base 3, 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., 9659664 + 1288225 = 3108^2 + 1135^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-10947889 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (10947809) 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 as a sum of consecutive naturals, namely, 5473944 + 5473945.

It is an arithmetic number, because the mean of its divisors is an integer number (5473945).

Almost surely, 2^10947889 is an apocalyptic number.

It is an amenable number.

10947889 is a deficient number, since it is larger than the sum of its proper divisors (1).

10947889 is an equidigital number, since it uses as much as digits as its factorization.

10947889 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 145152, while the sum is 46.

The square root of 10947889 is about 3308.7594351962. The cubic root of 10947889 is about 222.0462596021.

The spelling of 10947889 in words is "ten million, nine hundred forty-seven thousand, eight hundred eighty-nine".