8649317 has 2 divisors, whose sum is σ = 8649318. Its totient is φ = 8649316.

The previous prime is 8649299. The next prime is 8649323. The reversal of 8649317 is 7139468.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 6974881 + 1674436 = 2641^2 + 1294^2 .

It is a cyclic number.

It is not a de Polignac number, because 8649317 - 2⁶ = 8649253 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (8649367) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a good prime.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4324658 + 4324659.

It is an arithmetic number, because the mean of its divisors is an integer number (4324659).

Almost surely, 2^8649317 is an apocalyptic number.

It is an amenable number.

8649317 is a deficient number, since it is larger than the sum of its proper divisors (1).

8649317 is an equidigital number, since it uses as much as digits as its factorization.

8649317 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 36288, while the sum is 38.

The square root of 8649317 is about 2940.9721181949. The cubic root of 8649317 is about 205.2708456502.

The spelling of 8649317 in words is "eight million, six hundred forty-nine thousand, three hundred seventeen".