384664 has 16 divisors (see below), whose sum is σ = 824400. Its totient is φ = 164832.

The previous prime is 384641. The next prime is 384673. The reversal of 384664 is 466483.

It is a congruent number.

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 3 ways as a sum of consecutive naturals, for example, 3379 + ... + 3490.

It is an arithmetic number, because the mean of its divisors is an integer number (51525).

2³⁸⁴⁶⁶⁴ is an apocalyptic number.

It is an amenable number.

384664 is an abundant number, since it is smaller than the sum of its proper divisors (439736).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

384664 is a wasteful number, since it uses less digits than its factorization.

384664 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6882 (or 6878 counting only the distinct ones).

The product of its digits is 13824, while the sum is 31.

The square root of 384664 is about 620.2128666837. The cubic root of 384664 is about 72.7266943136.

The spelling of 384664 in words is "three hundred eighty-four thousand, six hundred sixty-four".