38107705 has 4 divisors (see below), whose sum is σ = 45729252. Its totient is φ = 30486160.

The previous prime is 38107691. The next prime is 38107709. The reversal of 38107705 is 50770183.

38107705 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 50770183 = 71 ⋅715073.

It can be written as a sum of positive squares in 2 ways, for example, as 4791721 + 33315984 = 2189^2 + 5772^2 .

It is not a de Polignac number, because 38107705 - 2⁷ = 38107577 is a prime.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (38107709) 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 3 ways as a sum of consecutive naturals, for example, 3810766 + ... + 3810775.

It is an arithmetic number, because the mean of its divisors is an integer number (11432313).

Almost surely, 2^38107705 is an apocalyptic number.

It is an amenable number.

38107705 is a deficient number, since it is larger than the sum of its proper divisors (7621547).

38107705 is an equidigital number, since it uses as much as digits as its factorization.

38107705 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7621546.

The product of its (nonzero) digits is 5880, while the sum is 31.

The square root of 38107705 is about 6173.1438505838. The cubic root of 38107705 is about 336.5148740065.

Adding to 38107705 its reverse (50770183), we get a palindrome (88877888).

The spelling of 38107705 in words is "thirty-eight million, one hundred seven thousand, seven hundred five".