165389927 has 8 divisors (see below), whose sum is σ = 174284160. Its totient is φ = 156514680.

The previous prime is 165389909. The next prime is 165389933. The reversal of 165389927 is 729983561.

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 165389927 - 2⁶ = 165389863 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 (165389027) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15368 + ... + 23810.

It is an arithmetic number, because the mean of its divisors is an integer number (21785520).

Almost surely, 2^165389927 is an apocalyptic number.

165389927 is a deficient number, since it is larger than the sum of its proper divisors (8894233).

165389927 is a wasteful number, since it uses less digits than its factorization.

165389927 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9493.

The product of its digits is 816480, while the sum is 50.

The square root of 165389927 is about 12860.4015100618. The cubic root of 165389927 is about 548.9123707326.

The spelling of 165389927 in words is "one hundred sixty-five million, three hundred eighty-nine thousand, nine hundred twenty-seven".