385849 has 4 divisors (see below), whose sum is σ = 408564. Its totient is φ = 363136.

The previous prime is 385843. The next prime is 385859. The reversal of 385849 is 948583.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 948583 = 17 ⋅55799.

It can be written as a sum of positive squares in 2 ways, for example, as 110224 + 275625 = 332^2 + 525^2 .

It is a cyclic number.

It is not a de Polignac number, because 385849 - 2⁵ = 385817 is a prime.

It is a Duffinian number.

385849 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (385843) 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, 11332 + ... + 11365.

It is an arithmetic number, because the mean of its divisors is an integer number (102141).

2³⁸⁵⁸⁴⁹ is an apocalyptic number.

It is an amenable number.

385849 is a deficient number, since it is larger than the sum of its proper divisors (22715).

385849 is a wasteful number, since it uses less digits than its factorization.

385849 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22714.

The product of its digits is 34560, while the sum is 37.

The square root of 385849 is about 621.1674492438. The cubic root of 385849 is about 72.8012986324.

The spelling of 385849 in words is "three hundred eighty-five thousand, eight hundred forty-nine".