384835789 has 8 divisors (see below), whose sum is σ = 416161592. Its totient is φ = 353756160.

The previous prime is 384835769. The next prime is 384835807. The reversal of 384835789 is 987538483.

It can be written as a sum of positive squares in 4 ways, for example, as 93450889 + 291384900 = 9667^2 + 17070^2 .

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 384835789 - 2⁹ = 384835277 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 (384835769) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 58284 + ... + 64549.

It is an arithmetic number, because the mean of its divisors is an integer number (52020199).

Almost surely, 2^384835789 is an apocalyptic number.

It is an amenable number.

384835789 is a deficient number, since it is larger than the sum of its proper divisors (31325803).

384835789 is a wasteful number, since it uses less digits than its factorization.

384835789 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 123087.

The product of its digits is 5806080, while the sum is 55.

The square root of 384835789 is about 19617.2319403121. The cubic root of 384835789 is about 727.3751916045.

The spelling of 384835789 in words is "three hundred eighty-four million, eight hundred thirty-five thousand, seven hundred eighty-nine".