6838309 has 4 divisors (see below), whose sum is σ = 7198240. Its totient is φ = 6478380.

The previous prime is 6838261. The next prime is 6838343. The reversal of 6838309 is 9038386.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 6838309 - 2¹⁵ = 6805541 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6838399) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 179937 + ... + 179974.

It is an arithmetic number, because the mean of its divisors is an integer number (1799560).

Almost surely, 2^6838309 is an apocalyptic number.

It is an amenable number.

6838309 is a deficient number, since it is larger than the sum of its proper divisors (359931).

6838309 is a wasteful number, since it uses less digits than its factorization.

6838309 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 359930.

The product of its (nonzero) digits is 31104, while the sum is 37.

The square root of 6838309 is about 2615.0160611361. The cubic root of 6838309 is about 189.8087549347.

The spelling of 6838309 in words is "six million, eight hundred thirty-eight thousand, three hundred nine".