38285509 has 2 divisors, whose sum is σ = 38285510. Its totient is φ = 38285508.

The previous prime is 38285497. The next prime is 38285521. The reversal of 38285509 is 90558283.

It is a balanced prime because it is at equal distance from previous prime (38285497) and next prime (38285521).

It can be written as a sum of positive squares in only one way, i.e., 20223009 + 18062500 = 4497^2 + 4250^2 .

It is an emirp because it is prime and its reverse (90558283) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 38285509 - 2⁵ = 38285477 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (38285579) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19142754 + 19142755.

It is an arithmetic number, because the mean of its divisors is an integer number (19142755).

Almost surely, 2^38285509 is an apocalyptic number.

It is an amenable number.

38285509 is a deficient number, since it is larger than the sum of its proper divisors (1).

38285509 is an equidigital number, since it uses as much as digits as its factorization.

38285509 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 86400, while the sum is 40.

The square root of 38285509 is about 6187.5285049848. The cubic root of 38285509 is about 337.0374356356.

The spelling of 38285509 in words is "thirty-eight million, two hundred eighty-five thousand, five hundred nine".