3938117 has 2 divisors, whose sum is σ = 3938118. Its totient is φ = 3938116.

The previous prime is 3938107. The next prime is 3938119. The reversal of 3938117 is 7118393.

3938117 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., 2989441 + 948676 = 1729^2 + 974^2 .

It is a cyclic number.

It is not a de Polignac number, because 3938117 - 2⁸ = 3937861 is a prime.

Together with 3938119, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3938119) 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 as a sum of consecutive naturals, namely, 1969058 + 1969059.

It is an arithmetic number, because the mean of its divisors is an integer number (1969059).

Almost surely, 2^3938117 is an apocalyptic number.

It is an amenable number.

3938117 is a deficient number, since it is larger than the sum of its proper divisors (1).

3938117 is an equidigital number, since it uses as much as digits as its factorization.

3938117 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 4536, while the sum is 32.

The square root of 3938117 is about 1984.4689465950. The cubic root of 3938117 is about 157.9172375400.

The spelling of 3938117 in words is "three million, nine hundred thirty-eight thousand, one hundred seventeen".