8317949 has 2 divisors, whose sum is σ = 8317950. Its totient is φ = 8317948.

The previous prime is 8317909. The next prime is 8317999. The reversal of 8317949 is 9497138.

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., 6666724 + 1651225 = 2582^2 + 1285^2 .

It is a cyclic number.

It is not a de Polignac number, because 8317949 - 2²⁰ = 7269373 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (8317909) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4158974 + 4158975.

It is an arithmetic number, because the mean of its divisors is an integer number (4158975).

Almost surely, 2^8317949 is an apocalyptic number.

It is an amenable number.

8317949 is a deficient number, since it is larger than the sum of its proper divisors (1).

8317949 is an equidigital number, since it uses as much as digits as its factorization.

8317949 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 54432, while the sum is 41.

The square root of 8317949 is about 2884.0854703008. The cubic root of 8317949 is about 202.6152288353.

The spelling of 8317949 in words is "eight million, three hundred seventeen thousand, nine hundred forty-nine".