38495909 has 2 divisors, whose sum is σ = 38495910. Its totient is φ = 38495908.

The previous prime is 38495903. The next prime is 38495917. The reversal of 38495909 is 90959483.

38495909 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., 37173409 + 1322500 = 6097^2 + 1150^2 .

It is a cyclic number.

It is not a de Polignac number, because 38495909 - 2¹⁶ = 38430373 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 (38495903) 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, 19247954 + 19247955.

It is an arithmetic number, because the mean of its divisors is an integer number (19247955).

Almost surely, 2^38495909 is an apocalyptic number.

It is an amenable number.

38495909 is a deficient number, since it is larger than the sum of its proper divisors (1).

38495909 is an equidigital number, since it uses as much as digits as its factorization.

38495909 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 349920, while the sum is 47.

The square root of 38495909 is about 6204.5071520629. The cubic root of 38495909 is about 337.6537103222.

The spelling of 38495909 in words is "thirty-eight million, four hundred ninety-five thousand, nine hundred nine".