384999 has 8 divisors (see below), whose sum is σ = 543600. Its totient is φ = 241536.

The previous prime is 384973. The next prime is 385001. The reversal of 384999 is 999483.

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

It is not a de Polignac number, because 384999 - 2⁹ = 384487 is a prime.

384999 is a modest number, since divided by 999 gives 384 as remainder.

It is a self number, because there is not a number n which added to its sum of digits gives 384999.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 384999.

It is not an unprimeable number, because it can be changed into a prime (384919) 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, 3724 + ... + 3825.

It is an arithmetic number, because the mean of its divisors is an integer number (67950).

2³⁸⁴⁹⁹⁹ is an apocalyptic number.

384999 is a deficient number, since it is larger than the sum of its proper divisors (158601).

384999 is a wasteful number, since it uses less digits than its factorization.

384999 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7569.

The product of its digits is 69984, while the sum is 42.

The square root of 384999 is about 620.4828764761. The cubic root of 384999 is about 72.7478005027.

The spelling of 384999 in words is "three hundred eighty-four thousand, nine hundred ninety-nine".