10889863 has 4 divisors (see below), whose sum is σ = 10989880. Its totient is φ = 10789848.

The previous prime is 10889779. The next prime is 10889891. The reversal of 10889863 is 36898801.

It is a happy number.

10889863 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 36898801 = 139 ⋅265459.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-10889863 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10889663) 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 in 3 ways as a sum of consecutive naturals, for example, 49845 + ... + 50062.

It is an arithmetic number, because the mean of its divisors is an integer number (2747470).

Almost surely, 2^10889863 is an apocalyptic number.

10889863 is a deficient number, since it is larger than the sum of its proper divisors (100017).

10889863 is an equidigital number, since it uses as much as digits as its factorization.

10889863 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 100016.

The product of its (nonzero) digits is 82944, while the sum is 43.

The square root of 10889863 is about 3299.9792423590. The cubic root of 10889863 is about 221.6532679510.

The spelling of 10889863 in words is "ten million, eight hundred eighty-nine thousand, eight hundred sixty-three".