384785 has 8 divisors (see below), whose sum is σ = 473256. Its totient is φ = 300160.

The previous prime is 384779. The next prime is 384817. The reversal of 384785 is 587483.

It can be written as a sum of positive squares in 4 ways, for example, as 4096 + 380689 = 64^2 + 617^2 .

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

It is a de Polignac number, because none of the positive numbers 2^k-384785 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 384785.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 734 + ... + 1143.

It is an arithmetic number, because the mean of its divisors is an integer number (59157).

2³⁸⁴⁷⁸⁵ is an apocalyptic number.

It is an amenable number.

384785 is a deficient number, since it is larger than the sum of its proper divisors (88471).

384785 is a wasteful number, since it uses less digits than its factorization.

384785 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1923.

The product of its digits is 26880, while the sum is 35.

The square root of 384785 is about 620.3104061678. The cubic root of 384785 is about 72.7343191563.

It can be divided in two parts, 38478 and 5, that added together give a palindrome (38483).

The spelling of 384785 in words is "three hundred eighty-four thousand, seven hundred eighty-five".