39489165 has 24 divisors (see below), whose sum is σ = 69907968. Its totient is φ = 20611680.

The previous prime is 39489161. The next prime is 39489199. The reversal of 39489165 is 56198493.

It is a happy number.

39489165 is a `hidden beast` number, since 3 + 9 + 489 + 165 = 666.

39489165 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 39489165 - 2² = 39489161 is a prime.

It is a Smith number, since the sum of its digits (45) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 39489165.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (39489161) 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 23 ways as a sum of consecutive naturals, for example, 7221 + ... + 11450.

It is an arithmetic number, because the mean of its divisors is an integer number (2912832).

Almost surely, 2^39489165 is an apocalyptic number.

It is an amenable number.

39489165 is a deficient number, since it is larger than the sum of its proper divisors (30418803).

39489165 is a wasteful number, since it uses less digits than its factorization.

39489165 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18729 (or 18726 counting only the distinct ones).

The product of its digits is 233280, while the sum is 45.

The square root of 39489165 is about 6284.0404995512. The cubic root of 39489165 is about 340.5330881829.

The spelling of 39489165 in words is "thirty-nine million, four hundred eighty-nine thousand, one hundred sixty-five".