8318549 has 2 divisors, whose sum is σ = 8318550. Its totient is φ = 8318548.

The previous prime is 8318543. The next prime is 8318581. The reversal of 8318549 is 9458138.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 5726449 + 2592100 = 2393^2 + 1610^2 .

It is a cyclic number.

It is not a de Polignac number, because 8318549 - 2⁴ = 8318533 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (8318543) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4159274 + 4159275.

It is an arithmetic number, because the mean of its divisors is an integer number (4159275).

Almost surely, 2^8318549 is an apocalyptic number.

It is an amenable number.

8318549 is a deficient number, since it is larger than the sum of its proper divisors (1).

8318549 is an equidigital number, since it uses as much as digits as its factorization.

8318549 is an evil number, because the sum of its binary digits is even.

The product of its digits is 34560, while the sum is 38.

The square root of 8318549 is about 2884.1894875337. The cubic root of 8318549 is about 202.6201004775.

The spelling of 8318549 in words is "eight million, three hundred eighteen thousand, five hundred forty-nine".