39000005 has 16 divisors (see below), whose sum is σ = 51408000. Its totient is φ = 28167360.

The previous prime is 39000001. The next prime is 39000037. The reversal of 39000005 is 50000093.

39000005 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 39000005 - 2² = 39000001 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (39000001) 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 15 ways as a sum of consecutive naturals, for example, 5816 + ... + 10574.

It is an arithmetic number, because the mean of its divisors is an integer number (3213000).

Almost surely, 2^39000005 is an apocalyptic number.

It is an amenable number.

39000005 is a deficient number, since it is larger than the sum of its proper divisors (12407995).

39000005 is a wasteful number, since it uses less digits than its factorization.

39000005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4924.

The product of its (nonzero) digits is 135, while the sum is 17.

The square root of 39000005 is about 6244.9983987188. The cubic root of 39000005 is about 339.1211587938.

Adding to 39000005 its reverse (50000093), we get a palindrome (89000098).

The spelling of 39000005 in words is "thirty-nine million, five", and thus it is an aban number and an uban number.