385775 has 12 divisors (see below), whose sum is σ = 515592. Its totient is φ = 284640.

The previous prime is 385771. The next prime is 385783. The reversal of 385775 is 577583.

It is not a de Polignac number, because 385775 - 2² = 385771 is a prime.

It is a Duffinian number.

It is a nialpdrome in base 5.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (385771) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 269 + ... + 918.

It is an arithmetic number, because the mean of its divisors is an integer number (42966).

2³⁸⁵⁷⁷⁵ is an apocalyptic number.

385775 is a deficient number, since it is larger than the sum of its proper divisors (129817).

385775 is a wasteful number, since it uses less digits than its factorization.

385775 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1210 (or 1205 counting only the distinct ones).

The product of its digits is 29400, while the sum is 35.

The square root of 385775 is about 621.1078811286. The cubic root of 385775 is about 72.7966442723.

The spelling of 385775 in words is "three hundred eighty-five thousand, seven hundred seventy-five".