39049993 has 2 divisors, whose sum is σ = 39049994. Its totient is φ = 39049992.

The previous prime is 39049973. The next prime is 39050009. The reversal of 39049993 is 39994093.

39049993 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 35081929 + 3968064 = 5923^2 + 1992^2 .

It is an emirp because it is prime and its reverse (39994093) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 39049993 - 2⁵ = 39049961 is a prime.

It is not a weakly prime, because it can be changed into another prime (39049973) 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 as a sum of consecutive naturals, namely, 19524996 + 19524997.

It is an arithmetic number, because the mean of its divisors is an integer number (19524997).

Almost surely, 2^39049993 is an apocalyptic number.

It is an amenable number.

39049993 is a deficient number, since it is larger than the sum of its proper divisors (1).

39049993 is an equidigital number, since it uses as much as digits as its factorization.

39049993 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 236196, while the sum is 46.

The square root of 39049993 is about 6248.9993598976. Note that the first 3 decimals coincide. The cubic root of 39049993 is about 339.2659857063.

The spelling of 39049993 in words is "thirty-nine million, forty-nine thousand, nine hundred ninety-three".