384811 has 4 divisors (see below), whose sum is σ = 439792. Its totient is φ = 329832.

The previous prime is 384779. The next prime is 384817. The reversal of 384811 is 118483.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 118483 = 109 ⋅1087.

It is a cyclic number.

It is not a de Polignac number, because 384811 - 2⁵ = 384779 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (384817) 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, 27480 + ... + 27493.

It is an arithmetic number, because the mean of its divisors is an integer number (109948).

2³⁸⁴⁸¹¹ is an apocalyptic number.

384811 is a deficient number, since it is larger than the sum of its proper divisors (54981).

384811 is an equidigital number, since it uses as much as digits as its factorization.

384811 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54980.

The product of its digits is 768, while the sum is 25.

The square root of 384811 is about 620.3313630633. The cubic root of 384811 is about 72.7359573436.

The spelling of 384811 in words is "three hundred eighty-four thousand, eight hundred eleven".