8989919 has 2 divisors, whose sum is σ = 8989920. Its totient is φ = 8989918.

The previous prime is 8989873. The next prime is 8989921. The reversal of 8989919 is 9199898.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 8989919 - 2²⁰ = 7941343 is a prime.

It is a super-2 number, since 2×8989919² = 161637287253122, which contains 22 as substring.

Together with 8989921, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (8989999) 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, 4494959 + 4494960.

It is an arithmetic number, because the mean of its divisors is an integer number (4494960).

Almost surely, 2^8989919 is an apocalyptic number.

8989919 is a deficient number, since it is larger than the sum of its proper divisors (1).

8989919 is an equidigital number, since it uses as much as digits as its factorization.

8989919 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 419904, while the sum is 53.

The square root of 8989919 is about 2998.3193625763. The cubic root of 8989919 is about 207.9306891229.

The spelling of 8989919 in words is "eight million, nine hundred eighty-nine thousand, nine hundred nineteen".