39039013 has 16 divisors (see below), whose sum is σ = 44025856. Its totient is φ = 34369920.

The previous prime is 39038971. The next prime is 39039019. The reversal of 39039013 is 31093093.

It is a happy number.

It is a de Polignac number, because none of the positive numbers 2^k-39039013 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 (39039019) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 28756 + ... + 30082.

It is an arithmetic number, because the mean of its divisors is an integer number (2751616).

Almost surely, 2^39039013 is an apocalyptic number.

It is an amenable number.

39039013 is a deficient number, since it is larger than the sum of its proper divisors (4986843).

39039013 is a wasteful number, since it uses less digits than its factorization.

39039013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1444.

The product of its (nonzero) digits is 2187, while the sum is 28.

The square root of 39039013 is about 6248.1207574758. The cubic root of 39039013 is about 339.2341846787.

The spelling of 39039013 in words is "thirty-nine million, thirty-nine thousand, thirteen".