8550889 has 2 divisors, whose sum is σ = 8550890. Its totient is φ = 8550888.

The previous prime is 8550887. The next prime is 8550907. The reversal of 8550889 is 9880558.

8550889 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., 7469289 + 1081600 = 2733^2 + 1040^2 .

It is a cyclic number.

It is not a de Polignac number, because 8550889 - 2¹ = 8550887 is a prime.

Together with 8550887, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (8550887) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4275444 + 4275445.

It is an arithmetic number, because the mean of its divisors is an integer number (4275445).

Almost surely, 2^8550889 is an apocalyptic number.

It is an amenable number.

8550889 is a deficient number, since it is larger than the sum of its proper divisors (1).

8550889 is an equidigital number, since it uses as much as digits as its factorization.

8550889 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 115200, while the sum is 43.

The square root of 8550889 is about 2924.1903152839. The cubic root of 8550889 is about 204.4892221570.

The spelling of 8550889 in words is "eight million, five hundred fifty thousand, eight hundred eighty-nine".