385869 has 12 divisors (see below), whose sum is σ = 566048. Its totient is φ = 233640.

The previous prime is 385859. The next prime is 385877. The reversal of 385869 is 968583.

It is not a de Polignac number, because 385869 - 2⁵ = 385837 is a prime.

It is a super-2 number, since 2×385869² = 297789770322, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (385859) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 169 + ... + 894.

2³⁸⁵⁸⁶⁹ is an apocalyptic number.

It is an amenable number.

385869 is a deficient number, since it is larger than the sum of its proper divisors (180179).

385869 is a wasteful number, since it uses less digits than its factorization.

385869 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1088 (or 1077 counting only the distinct ones).

The product of its digits is 51840, while the sum is 39.

The square root of 385869 is about 621.1835477538. The cubic root of 385869 is about 72.8025564654.

The spelling of 385869 in words is "three hundred eighty-five thousand, eight hundred sixty-nine".