384775 has 6 divisors (see below), whose sum is σ = 477152. Its totient is φ = 307800.

The previous prime is 384773. The next prime is 384779. The reversal of 384775 is 577483.

It is not a de Polignac number, because 384775 - 2¹ = 384773 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 384775.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (384773) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 7671 + ... + 7720.

2³⁸⁴⁷⁷⁵ is an apocalyptic number.

384775 is a deficient number, since it is larger than the sum of its proper divisors (92377).

384775 is a wasteful number, since it uses less digits than its factorization.

384775 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15401 (or 15396 counting only the distinct ones).

The product of its digits is 23520, while the sum is 34.

The square root of 384775 is about 620.3023456348. The cubic root of 384775 is about 72.7336890646.

The spelling of 384775 in words is "three hundred eighty-four thousand, seven hundred seventy-five".