385867 has 4 divisors (see below), whose sum is σ = 390600. Its totient is φ = 381136.

The previous prime is 385859. The next prime is 385877. The reversal of 385867 is 768583.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 768583 = 31 ⋅24793.

It is not a de Polignac number, because 385867 - 2³ = 385859 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (385817) 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 3 ways as a sum of consecutive naturals, for example, 2242 + ... + 2407.

It is an arithmetic number, because the mean of its divisors is an integer number (97650).

2³⁸⁵⁸⁶⁷ is an apocalyptic number.

385867 is a deficient number, since it is larger than the sum of its proper divisors (4733).

385867 is an equidigital number, since it uses as much as digits as its factorization.

385867 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4732.

The product of its digits is 40320, while the sum is 37.

The square root of 385867 is about 621.1819379216. The cubic root of 385867 is about 72.8024306840.

The spelling of 385867 in words is "three hundred eighty-five thousand, eight hundred sixty-seven".