38232809 has 2 divisors, whose sum is σ = 38232810. Its totient is φ = 38232808.

The previous prime is 38232773. The next prime is 38232829. The reversal of 38232809 is 90823283.

38232809 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 can be written as a sum of positive squares in only one way, i.e., 34515625 + 3717184 = 5875^2 + 1928^2 .

It is an emirp because it is prime and its reverse (90823283) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 38232809 - 2²⁰ = 37184233 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (38232829) 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, 19116404 + 19116405.

It is an arithmetic number, because the mean of its divisors is an integer number (19116405).

Almost surely, 2^38232809 is an apocalyptic number.

It is an amenable number.

38232809 is a deficient number, since it is larger than the sum of its proper divisors (1).

38232809 is an equidigital number, since it uses as much as digits as its factorization.

38232809 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 20736, while the sum is 35.

The square root of 38232809 is about 6183.2684722564. The cubic root of 38232809 is about 336.8827206246.

The spelling of 38232809 in words is "thirty-eight million, two hundred thirty-two thousand, eight hundred nine".