38566939 has 2 divisors, whose sum is σ = 38566940. Its totient is φ = 38566938.

The previous prime is 38566933. The next prime is 38566949. The reversal of 38566939 is 93966583.

38566939 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 is a cyclic number.

It is not a de Polignac number, because 38566939 - 2⁵ = 38566907 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 38566892 and 38566901.

It is not a weakly prime, because it can be changed into another prime (38566933) 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, 19283469 + 19283470.

It is an arithmetic number, because the mean of its divisors is an integer number (19283470).

Almost surely, 2^38566939 is an apocalyptic number.

38566939 is a deficient number, since it is larger than the sum of its proper divisors (1).

38566939 is an equidigital number, since it uses as much as digits as its factorization.

38566939 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1049760, while the sum is 49.

The square root of 38566939 is about 6210.2285787240. The cubic root of 38566939 is about 337.8612545162.

The spelling of 38566939 in words is "thirty-eight million, five hundred sixty-six thousand, nine hundred thirty-nine".