38207009 has 2 divisors, whose sum is σ = 38207010. Its totient is φ = 38207008.

The previous prime is 38206997. The next prime is 38207033. The reversal of 38207009 is 90070283.

38207009 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., 37246609 + 960400 = 6103^2 + 980^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-38207009 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (38207089) 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, 19103504 + 19103505.

It is an arithmetic number, because the mean of its divisors is an integer number (19103505).

Almost surely, 2^38207009 is an apocalyptic number.

It is an amenable number.

38207009 is a deficient number, since it is larger than the sum of its proper divisors (1).

38207009 is an equidigital number, since it uses as much as digits as its factorization.

38207009 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3024, while the sum is 29.

The square root of 38207009 is about 6181.1818449225. The cubic root of 38207009 is about 336.8069259497.

The spelling of 38207009 in words is "thirty-eight million, two hundred seven thousand, nine".