38773909 has 2 divisors, whose sum is σ = 38773910. Its totient is φ = 38773908.

The previous prime is 38773897. The next prime is 38773937. The reversal of 38773909 is 90937783.

38773909 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., 34550884 + 4223025 = 5878^2 + 2055^2 .

It is an emirp because it is prime and its reverse (90937783) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 38773909 - 2⁷ = 38773781 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (38773939) 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, 19386954 + 19386955.

It is an arithmetic number, because the mean of its divisors is an integer number (19386955).

Almost surely, 2^38773909 is an apocalyptic number.

It is an amenable number.

38773909 is a deficient number, since it is larger than the sum of its proper divisors (1).

38773909 is an equidigital number, since it uses as much as digits as its factorization.

38773909 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 285768, while the sum is 46.

The square root of 38773909 is about 6226.8699199518. The cubic root of 38773909 is about 338.4645555900.

The spelling of 38773909 in words is "thirty-eight million, seven hundred seventy-three thousand, nine hundred nine".