384855 has 8 divisors (see below), whose sum is σ = 615792. Its totient is φ = 205248.

The previous prime is 384851. The next prime is 384889. The reversal of 384855 is 558483.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 384855 - 2² = 384851 is a prime.

It is a super-2 number, since 2×384855² = 296226742050, which contains 22 as substring.

It is a Smith number, since the sum of its digits (33) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (384851) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12814 + ... + 12843.

It is an arithmetic number, because the mean of its divisors is an integer number (76974).

2³⁸⁴⁸⁵⁵ is an apocalyptic number.

384855 is a deficient number, since it is larger than the sum of its proper divisors (230937).

384855 is a wasteful number, since it uses less digits than its factorization.

384855 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25665.

The product of its digits is 19200, while the sum is 33.

The square root of 384855 is about 620.3668269661. The cubic root of 384855 is about 72.7387294925.

The spelling of 384855 in words is "three hundred eighty-four thousand, eight hundred fifty-five".