389013321 has 8 divisors (see below), whose sum is σ = 519029344. Its totient is φ = 259169760.

The previous prime is 389013241. The next prime is 389013341. The reversal of 389013321 is 123310983.

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

It is not a de Polignac number, because 389013321 - 2¹⁰ = 389012297 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (389013341) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 37756 + ... + 46941.

It is an arithmetic number, because the mean of its divisors is an integer number (64878668).

Almost surely, 2^389013321 is an apocalyptic number.

It is an amenable number.

389013321 is a deficient number, since it is larger than the sum of its proper divisors (130016023).

389013321 is a wasteful number, since it uses less digits than its factorization.

389013321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 86231.

The product of its (nonzero) digits is 3888, while the sum is 30.

The square root of 389013321 is about 19723.4206211803. The cubic root of 389013321 is about 729.9976987480.

The spelling of 389013321 in words is "three hundred eighty-nine million, thirteen thousand, three hundred twenty-one".