385866163 has 2 divisors, whose sum is σ = 385866164. Its totient is φ = 385866162.

The previous prime is 385866161. The next prime is 385866167. The reversal of 385866163 is 361668583.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 385866163 - 2¹ = 385866161 is a prime.

Together with 385866161, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (385866161) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 192933081 + 192933082.

It is an arithmetic number, because the mean of its divisors is an integer number (192933082).

Almost surely, 2^385866163 is an apocalyptic number.

385866163 is a deficient number, since it is larger than the sum of its proper divisors (1).

385866163 is an equidigital number, since it uses as much as digits as its factorization.

385866163 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 622080, while the sum is 46.

The square root of 385866163 is about 19643.4763471235. The cubic root of 385866163 is about 728.0237804443.

The spelling of 385866163 in words is "three hundred eighty-five million, eight hundred sixty-six thousand, one hundred sixty-three".