384447 has 8 divisors (see below), whose sum is σ = 585856. Its totient is φ = 219672.

The previous prime is 384437. The next prime is 384469. The reversal of 384447 is 744483.

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

It is not a de Polignac number, because 384447 - 2⁶ = 384383 is a prime.

It is a Duffinian number.

384447 is a lucky number.

It is a plaindrome in base 8.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (384407) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9133 + ... + 9174.

It is an arithmetic number, because the mean of its divisors is an integer number (73232).

2³⁸⁴⁴⁴⁷ is an apocalyptic number.

384447 is a deficient number, since it is larger than the sum of its proper divisors (201409).

384447 is a wasteful number, since it uses less digits than its factorization.

384447 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18317.

The product of its digits is 10752, while the sum is 30.

The square root of 384447 is about 620.0379020673. The cubic root of 384447 is about 72.7130160028.

The spelling of 384447 in words is "three hundred eighty-four thousand, four hundred forty-seven".