384099 has 4 divisors (see below), whose sum is σ = 512136. Its totient is φ = 256064.

The previous prime is 384089. The next prime is 384107. The reversal of 384099 is 990483.

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

It is a cyclic number.

It is not a de Polignac number, because 384099 - 2⁵ = 384067 is a prime.

It is a D-number.

384099 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (384029) by changing a digit.

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, 64014 + ... + 64019.

It is an arithmetic number, because the mean of its divisors is an integer number (128034).

2³⁸⁴⁰⁹⁹ is an apocalyptic number.

384099 is a deficient number, since it is larger than the sum of its proper divisors (128037).

384099 is a wasteful number, since it uses less digits than its factorization.

384099 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 128036.

The product of its (nonzero) digits is 7776, while the sum is 33.

The square root of 384099 is about 619.7572105268. The cubic root of 384099 is about 72.6910695286.

The spelling of 384099 in words is "three hundred eighty-four thousand, ninety-nine".