17213489 has 2 divisors, whose sum is σ = 17213490. Its totient is φ = 17213488.

The previous prime is 17213479. The next prime is 17213491. The reversal of 17213489 is 98431271.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 10349089 + 6864400 = 3217^2 + 2620^2 .

It is an emirp because it is prime and its reverse (98431271) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 17213489 - 2¹² = 17209393 is a prime.

Together with 17213491, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (17213419) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8606744 + 8606745.

It is an arithmetic number, because the mean of its divisors is an integer number (8606745).

Almost surely, 2^17213489 is an apocalyptic number.

It is an amenable number.

17213489 is a deficient number, since it is larger than the sum of its proper divisors (1).

17213489 is an equidigital number, since it uses as much as digits as its factorization.

17213489 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 12096, while the sum is 35.

The square root of 17213489 is about 4148.9141953046. The cubic root of 17213489 is about 258.2000381597.

The spelling of 17213489 in words is "seventeen million, two hundred thirteen thousand, four hundred eighty-nine".