39365993 has 2 divisors, whose sum is σ = 39365994. Its totient is φ = 39365992.

The previous prime is 39365959. The next prime is 39366013. The reversal of 39365993 is 39956393.

It is a happy number.

39365993 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., 27164944 + 12201049 = 5212^2 + 3493^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-39365993 is a prime.

It is not a weakly prime, because it can be changed into another prime (39364993) 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, 19682996 + 19682997.

It is an arithmetic number, because the mean of its divisors is an integer number (19682997).

Almost surely, 2^39365993 is an apocalyptic number.

It is an amenable number.

39365993 is a deficient number, since it is larger than the sum of its proper divisors (1).

39365993 is an equidigital number, since it uses as much as digits as its factorization.

39365993 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 590490, while the sum is 47.

The square root of 39365993 is about 6274.2324630189. The cubic root of 39365993 is about 340.1786633083.

The spelling of 39365993 in words is "thirty-nine million, three hundred sixty-five thousand, nine hundred ninety-three".