948317309 has 2 divisors, whose sum is σ = 948317310. Its totient is φ = 948317308.

The previous prime is 948317219. The next prime is 948317323. The reversal of 948317309 is 903713849.

It is a happy number.

948317309 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 639331225 + 308986084 = 25285^2 + 17578^2 .

It is a cyclic number.

It is not a de Polignac number, because 948317309 - 2⁸ = 948317053 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 948317309.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (948317329) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 474158654 + 474158655.

It is an arithmetic number, because the mean of its divisors is an integer number (474158655).

Almost surely, 2^948317309 is an apocalyptic number.

It is an amenable number.

948317309 is a deficient number, since it is larger than the sum of its proper divisors (1).

948317309 is an equidigital number, since it uses as much as digits as its factorization.

948317309 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 163296, while the sum is 44.

The square root of 948317309 is about 30794.7610641810. The cubic root of 948317309 is about 982.4668205920.

The spelling of 948317309 in words is "nine hundred forty-eight million, three hundred seventeen thousand, three hundred nine".