38319797 has 2 divisors, whose sum is σ = 38319798. Its totient is φ = 38319796.

The previous prime is 38319793. The next prime is 38319821. The reversal of 38319797 is 79791383.

38319797 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 26306641 + 12013156 = 5129^2 + 3466^2 .

It is a cyclic number.

It is not a de Polignac number, because 38319797 - 2² = 38319793 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (38319791) 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, 19159898 + 19159899.

It is an arithmetic number, because the mean of its divisors is an integer number (19159899).

Almost surely, 2^38319797 is an apocalyptic number.

It is an amenable number.

38319797 is a deficient number, since it is larger than the sum of its proper divisors (1).

38319797 is an equidigital number, since it uses as much as digits as its factorization.

38319797 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 285768, while the sum is 47.

The square root of 38319797 is about 6190.2986196144. The cubic root of 38319797 is about 337.1380210504.

The spelling of 38319797 in words is "thirty-eight million, three hundred nineteen thousand, seven hundred ninety-seven".