389642165 has 8 divisors (see below), whose sum is σ = 510077088. Its totient is φ = 283376080.

The previous prime is 389642137. The next prime is 389642179. The reversal of 389642165 is 561246983.

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

It is not a de Polignac number, because 389642165 - 2¹⁰ = 389641141 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

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, 3542147 + ... + 3542256.

It is an arithmetic number, because the mean of its divisors is an integer number (63759636).

Almost surely, 2^389642165 is an apocalyptic number.

It is an amenable number.

389642165 is a deficient number, since it is larger than the sum of its proper divisors (120434923).

389642165 is a wasteful number, since it uses less digits than its factorization.

389642165 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7084419.

The product of its digits is 311040, while the sum is 44.

The square root of 389642165 is about 19739.3557392332. The cubic root of 389642165 is about 730.3908365614.

The spelling of 389642165 in words is "three hundred eighty-nine million, six hundred forty-two thousand, one hundred sixty-five".