385036217 has 2 divisors, whose sum is σ = 385036218. Its totient is φ = 385036216.

The previous prime is 385036181. The next prime is 385036231. The reversal of 385036217 is 712630583.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 285914281 + 99121936 = 16909^2 + 9956^2 .

It is a cyclic number.

It is not a de Polignac number, because 385036217 - 2⁶ = 385036153 is a prime.

It is not a weakly prime, because it can be changed into another prime (385036297) 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, 192518108 + 192518109.

It is an arithmetic number, because the mean of its divisors is an integer number (192518109).

Almost surely, 2^385036217 is an apocalyptic number.

It is an amenable number.

385036217 is a deficient number, since it is larger than the sum of its proper divisors (1).

385036217 is an equidigital number, since it uses as much as digits as its factorization.

385036217 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 30240, while the sum is 35.

The square root of 385036217 is about 19622.3397432620. The cubic root of 385036217 is about 727.5014455004.

The spelling of 385036217 in words is "three hundred eighty-five million, thirty-six thousand, two hundred seventeen".