38402317 has 2 divisors, whose sum is σ = 38402318. Its totient is φ = 38402316.

The previous prime is 38402297. The next prime is 38402327. The reversal of 38402317 is 71320483.

38402317 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., 38303721 + 98596 = 6189^2 + 314^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-38402317 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (38402327) 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, 19201158 + 19201159.

It is an arithmetic number, because the mean of its divisors is an integer number (19201159).

Almost surely, 2^38402317 is an apocalyptic number.

It is an amenable number.

38402317 is a deficient number, since it is larger than the sum of its proper divisors (1).

38402317 is an equidigital number, since it uses as much as digits as its factorization.

38402317 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4032, while the sum is 28.

The square root of 38402317 is about 6196.9603032455. The cubic root of 38402317 is about 337.3798515172.

The spelling of 38402317 in words is "thirty-eight million, four hundred two thousand, three hundred seventeen".