384771 has 4 divisors (see below), whose sum is σ = 513032. Its totient is φ = 256512.

The previous prime is 384757. The next prime is 384773. The reversal of 384771 is 177483.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 384771 - 2⁹ = 384259 is a prime.

It is a D-number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (384773) 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, 64126 + ... + 64131.

It is an arithmetic number, because the mean of its divisors is an integer number (128258).

2³⁸⁴⁷⁷¹ is an apocalyptic number.

384771 is a deficient number, since it is larger than the sum of its proper divisors (128261).

384771 is a wasteful number, since it uses less digits than its factorization.

384771 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 128260.

The product of its digits is 4704, while the sum is 30.

The square root of 384771 is about 620.2991213923. The cubic root of 384771 is about 72.7334370249.

The spelling of 384771 in words is "three hundred eighty-four thousand, seven hundred seventy-one".