385868317 has 2 divisors, whose sum is σ = 385868318. Its totient is φ = 385868316.

The previous prime is 385868303. The next prime is 385868339. The reversal of 385868317 is 713868583.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 212314041 + 173554276 = 14571^2 + 13174^2 .

It is a cyclic number.

It is not a de Polignac number, because 385868317 - 2²³ = 377479709 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (385868387) 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, 192934158 + 192934159.

It is an arithmetic number, because the mean of its divisors is an integer number (192934159).

Almost surely, 2^385868317 is an apocalyptic number.

It is an amenable number.

385868317 is a deficient number, since it is larger than the sum of its proper divisors (1).

385868317 is an equidigital number, since it uses as much as digits as its factorization.

385868317 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 967680, while the sum is 49.

The square root of 385868317 is about 19643.5311744096. The cubic root of 385868317 is about 728.0251351111.

The spelling of 385868317 in words is "three hundred eighty-five million, eight hundred sixty-eight thousand, three hundred seventeen".