38555197 has 2 divisors, whose sum is σ = 38555198. Its totient is φ = 38555196.

The previous prime is 38555191. The next prime is 38555207. The reversal of 38555197 is 79155583.

38555197 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 38118276 + 436921 = 6174^2 + 661^2 .

It is a cyclic number.

It is not a de Polignac number, because 38555197 - 2²³ = 30166589 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (38555191) 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, 19277598 + 19277599.

It is an arithmetic number, because the mean of its divisors is an integer number (19277599).

Almost surely, 2^38555197 is an apocalyptic number.

It is an amenable number.

38555197 is a deficient number, since it is larger than the sum of its proper divisors (1).

38555197 is an equidigital number, since it uses as much as digits as its factorization.

38555197 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 189000, while the sum is 43.

The square root of 38555197 is about 6209.2831309258. The cubic root of 38555197 is about 337.8269628869.

The spelling of 38555197 in words is "thirty-eight million, five hundred fifty-five thousand, one hundred ninety-seven".