6147839 has 4 divisors (see below), whose sum is σ = 6290856. Its totient is φ = 6004824.

The previous prime is 6147821. The next prime is 6147847. The reversal of 6147839 is 9387416.

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 6147839 - 2¹⁶ = 6082303 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 (6147139) 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, 71444 + ... + 71529.

It is an arithmetic number, because the mean of its divisors is an integer number (1572714).

Almost surely, 2^6147839 is an apocalyptic number.

6147839 is a deficient number, since it is larger than the sum of its proper divisors (143017).

6147839 is a wasteful number, since it uses less digits than its factorization.

6147839 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 143016.

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

The square root of 6147839 is about 2479.4836155942. The cubic root of 6147839 is about 183.1924180707.

The spelling of 6147839 in words is "six million, one hundred forty-seven thousand, eight hundred thirty-nine".