8989517 has 2 divisors, whose sum is σ = 8989518. Its totient is φ = 8989516.

The previous prime is 8989511. The next prime is 8989553. The reversal of 8989517 is 7159898.

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., 7123561 + 1865956 = 2669^2 + 1366^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-8989517 is a prime.

It is a super-2 number, since 2×8989517² = 161622831786578, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (8989511) 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, 4494758 + 4494759.

It is an arithmetic number, because the mean of its divisors is an integer number (4494759).

Almost surely, 2^8989517 is an apocalyptic number.

It is an amenable number.

8989517 is a deficient number, since it is larger than the sum of its proper divisors (1).

8989517 is an equidigital number, since it uses as much as digits as its factorization.

8989517 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 181440, while the sum is 47.

The square root of 8989517 is about 2998.2523242716. The cubic root of 8989517 is about 207.9275897482.

The spelling of 8989517 in words is "eight million, nine hundred eighty-nine thousand, five hundred seventeen".