8944889 has 2 divisors, whose sum is σ = 8944890. Its totient is φ = 8944888.

The previous prime is 8944883. The next prime is 8944919. The reversal of 8944889 is 9884498.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 8791225 + 153664 = 2965^2 + 392^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-8944889 is a prime.

It is a super-2 number, since 2×8944889² = 160022078444642, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (8944883) 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, 4472444 + 4472445.

It is an arithmetic number, because the mean of its divisors is an integer number (4472445).

Almost surely, 2^8944889 is an apocalyptic number.

It is an amenable number.

8944889 is a deficient number, since it is larger than the sum of its proper divisors (1).

8944889 is an equidigital number, since it uses as much as digits as its factorization.

8944889 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 663552, while the sum is 50.

The square root of 8944889 is about 2990.8007289019. The cubic root of 8944889 is about 207.5829367982.

The spelling of 8944889 in words is "eight million, nine hundred forty-four thousand, eight hundred eighty-nine".