38908117 has 2 divisors, whose sum is σ = 38908118. Its totient is φ = 38908116.

The previous prime is 38908109. The next prime is 38908153. The reversal of 38908117 is 71180983.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 22335076 + 16573041 = 4726^2 + 4071^2 .

It is a cyclic number.

It is not a de Polignac number, because 38908117 - 2³ = 38908109 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (38908417) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19454058 + 19454059.

It is an arithmetic number, because the mean of its divisors is an integer number (19454059).

Almost surely, 2^38908117 is an apocalyptic number.

It is an amenable number.

38908117 is a deficient number, since it is larger than the sum of its proper divisors (1).

38908117 is an equidigital number, since it uses as much as digits as its factorization.

38908117 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 12096, while the sum is 37.

The square root of 38908117 is about 6237.6371327611. The cubic root of 38908117 is about 338.8546146392.

The spelling of 38908117 in words is "thirty-eight million, nine hundred eight thousand, one hundred seventeen".