384709 has 8 divisors (see below), whose sum is σ = 419832. Its totient is φ = 350400.

The previous prime is 384701. The next prime is 384719. The reversal of 384709 is 907483.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 184900 + 199809 = 430^2 + 447^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 384709 - 2³ = 384701 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (384701) 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, 1167 + ... + 1459.

It is an arithmetic number, because the mean of its divisors is an integer number (52479).

2³⁸⁴⁷⁰⁹ is an apocalyptic number.

It is an amenable number.

384709 is a deficient number, since it is larger than the sum of its proper divisors (35123).

384709 is a wasteful number, since it uses less digits than its factorization.

384709 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 407.

The product of its (nonzero) digits is 6048, while the sum is 31.

The square root of 384709 is about 620.2491434899. The cubic root of 384709 is about 72.7295301856.

The spelling of 384709 in words is "three hundred eighty-four thousand, seven hundred nine".