384853 has 4 divisors (see below), whose sum is σ = 439840. Its totient is φ = 329868.

The previous prime is 384851. The next prime is 384889. The reversal of 384853 is 358483.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 384853 - 2¹ = 384851 is a prime.

It is a super-2 number, since 2×384853² = 296223663218, which contains 22 as substring.

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

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 27483 + ... + 27496.

It is an arithmetic number, because the mean of its divisors is an integer number (109960).

2³⁸⁴⁸⁵³ is an apocalyptic number.

It is an amenable number.

384853 is a deficient number, since it is larger than the sum of its proper divisors (54987).

384853 is an equidigital number, since it uses as much as digits as its factorization.

384853 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54986.

The product of its digits is 11520, while the sum is 31.

The square root of 384853 is about 620.3652150145. The cubic root of 384853 is about 72.7386034903.

The spelling of 384853 in words is "three hundred eighty-four thousand, eight hundred fifty-three".