38975687 has 2 divisors, whose sum is σ = 38975688. Its totient is φ = 38975686.

The previous prime is 38975653. The next prime is 38975693. The reversal of 38975687 is 78657983.

38975687 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 is an emirp because it is prime and its reverse (78657983) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-38975687 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (38975627) 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, 19487843 + 19487844.

It is an arithmetic number, because the mean of its divisors is an integer number (19487844).

Almost surely, 2^38975687 is an apocalyptic number.

38975687 is a deficient number, since it is larger than the sum of its proper divisors (1).

38975687 is an equidigital number, since it uses as much as digits as its factorization.

38975687 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2540160, while the sum is 53.

The square root of 38975687 is about 6243.0510970198. The cubic root of 38975687 is about 339.0506591192.

The spelling of 38975687 in words is "thirty-eight million, nine hundred seventy-five thousand, six hundred eighty-seven".