999675317 has 2 divisors, whose sum is σ = 999675318. Its totient is φ = 999675316.

The previous prime is 999675301. The next prime is 999675319. The reversal of 999675317 is 713576999.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 902041156 + 97634161 = 30034^2 + 9881^2 .

It is a cyclic number.

It is not a de Polignac number, because 999675317 - 2⁴ = 999675301 is a prime.

Together with 999675319, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (999675319) 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, 499837658 + 499837659.

It is an arithmetic number, because the mean of its divisors is an integer number (499837659).

Almost surely, 2^999675317 is an apocalyptic number.

It is an amenable number.

999675317 is a deficient number, since it is larger than the sum of its proper divisors (1).

999675317 is an equidigital number, since it uses as much as digits as its factorization.

999675317 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3214890, while the sum is 56.

The square root of 999675317 is about 31617.6424959231. The cubic root of 999675317 is about 999.8917606180.

The spelling of 999675317 in words is "nine hundred ninety-nine million, six hundred seventy-five thousand, three hundred seventeen".