3838509 has 10 divisors (see below), whose sum is σ = 5734190. Its totient is φ = 2558952.

The previous prime is 3838507. The next prime is 3838519. The reversal of 3838509 is 9058383.

3838509 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 2205225 + 1633284 = 1485^2 + 1278^2 .

It is not a de Polignac number, because 3838509 - 2¹ = 3838507 is a prime.

It is a super-3 number, since 3×3838509³ (a number of 21 digits) contains 333 as substring.

It is an alternating number because its digits alternate between odd and even.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3838507) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 23614 + ... + 23775.

It is an arithmetic number, because the mean of its divisors is an integer number (573419).

Almost surely, 2^3838509 is an apocalyptic number.

It is an amenable number.

3838509 is a deficient number, since it is larger than the sum of its proper divisors (1895681).

3838509 is an equidigital number, since it uses as much as digits as its factorization.

3838509 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47401 (or 47392 counting only the distinct ones).

The product of its (nonzero) digits is 25920, while the sum is 36.

The square root of 3838509 is about 1959.2113209146. The cubic root of 3838509 is about 156.5744354270.

The spelling of 3838509 in words is "three million, eight hundred thirty-eight thousand, five hundred nine".