8197489 has 2 divisors, whose sum is σ = 8197490. Its totient is φ = 8197488.

The previous prime is 8197487. The next prime is 8197507. The reversal of 8197489 is 9847918.

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., 7246864 + 950625 = 2692^2 + 975^2 .

It is a cyclic number.

It is not a de Polignac number, because 8197489 - 2¹ = 8197487 is a prime.

It is a super-3 number, since 3×8197489³ (a number of 22 digits) contains 333 as substring.

Together with 8197487, it forms a pair of twin primes.

It is a Chen prime.

It is a plaindrome in base 14.

It is not a weakly prime, because it can be changed into another prime (8197487) 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, 4098744 + 4098745.

It is an arithmetic number, because the mean of its divisors is an integer number (4098745).

Almost surely, 2^8197489 is an apocalyptic number.

It is an amenable number.

8197489 is a deficient number, since it is larger than the sum of its proper divisors (1).

8197489 is an equidigital number, since it uses as much as digits as its factorization.

8197489 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 145152, while the sum is 46.

The square root of 8197489 is about 2863.1257394673. The cubic root of 8197489 is about 201.6323820627.

The spelling of 8197489 in words is "eight million, one hundred ninety-seven thousand, four hundred eighty-nine".