384355 has 4 divisors (see below), whose sum is σ = 461232. Its totient is φ = 307480.

The previous prime is 384343. The next prime is 384359. The reversal of 384355 is 553483.

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

It is not a de Polignac number, because 384355 - 2⁷ = 384227 is a prime.

It is a Duffinian number.

384355 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (384359) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 38431 + ... + 38440.

It is an arithmetic number, because the mean of its divisors is an integer number (115308).

2³⁸⁴³⁵⁵ is an apocalyptic number.

384355 is a deficient number, since it is larger than the sum of its proper divisors (76877).

384355 is an equidigital number, since it uses as much as digits as its factorization.

384355 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 76876.

The product of its digits is 7200, while the sum is 28.

The square root of 384355 is about 619.9637086153. The cubic root of 384355 is about 72.7072153496.

The spelling of 384355 in words is "three hundred eighty-four thousand, three hundred fifty-five".