38836309 has 2 divisors, whose sum is σ = 38836310. Its totient is φ = 38836308.

The previous prime is 38836297. The next prime is 38836319. The reversal of 38836309 is 90363883.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 38812900 + 23409 = 6230^2 + 153^2 .

It is an emirp because it is prime and its reverse (90363883) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 38836309 - 2⁵ = 38836277 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 (38836319) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19418154 + 19418155.

It is an arithmetic number, because the mean of its divisors is an integer number (19418155).

Almost surely, 2^38836309 is an apocalyptic number.

It is an amenable number.

38836309 is a deficient number, since it is larger than the sum of its proper divisors (1).

38836309 is an equidigital number, since it uses as much as digits as its factorization.

38836309 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 93312, while the sum is 40.

The square root of 38836309 is about 6231.8784487504. The cubic root of 38836309 is about 338.6460252875.

The spelling of 38836309 in words is "thirty-eight million, eight hundred thirty-six thousand, three hundred nine".