6839147 has 4 divisors (see below), whose sum is σ = 7816176. Its totient is φ = 5862120.

The previous prime is 6839123. The next prime is 6839149. The reversal of 6839147 is 7419386.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 6839147 - 2¹⁰ = 6838123 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 6839147.

It is not an unprimeable number, because it can be changed into a prime (6839149) 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 in 3 ways as a sum of consecutive naturals, for example, 488504 + ... + 488517.

It is an arithmetic number, because the mean of its divisors is an integer number (1954044).

Almost surely, 2^6839147 is an apocalyptic number.

6839147 is a deficient number, since it is larger than the sum of its proper divisors (977029).

6839147 is an equidigital number, since it uses as much as digits as its factorization.

6839147 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 977028.

The product of its digits is 36288, while the sum is 38.

The square root of 6839147 is about 2615.1762846890. The cubic root of 6839147 is about 189.8165079840.

The spelling of 6839147 in words is "six million, eight hundred thirty-nine thousand, one hundred forty-seven".