38917841 has 2 divisors, whose sum is σ = 38917842. Its totient is φ = 38917840.

The previous prime is 38917819. The next prime is 38917843. The reversal of 38917841 is 14871983.

38917841 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., 38688400 + 229441 = 6220^2 + 479^2 .

It is a cyclic number.

It is not a de Polignac number, because 38917841 - 2¹⁰ = 38916817 is a prime.

It is a Sophie Germain prime.

Together with 38917843, it forms a pair of twin primes.

It is a Chen prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (38917843) 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, 19458920 + 19458921.

It is an arithmetic number, because the mean of its divisors is an integer number (19458921).

Almost surely, 2^38917841 is an apocalyptic number.

It is an amenable number.

38917841 is a deficient number, since it is larger than the sum of its proper divisors (1).

38917841 is an equidigital number, since it uses as much as digits as its factorization.

38917841 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 48384, while the sum is 41.

The square root of 38917841 is about 6238.4165458873. The cubic root of 38917841 is about 338.8828413783.

The spelling of 38917841 in words is "thirty-eight million, nine hundred seventeen thousand, eight hundred forty-one".