6147439 has 4 divisors (see below), whose sum is σ = 6313624. Its totient is φ = 5981256.

The previous prime is 6147419. The next prime is 6147443. The reversal of 6147439 is 9347416.

It is a happy number.

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 6147439 - 2¹⁵ = 6114671 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 (6147419) 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, 83037 + ... + 83110.

It is an arithmetic number, because the mean of its divisors is an integer number (1578406).

Almost surely, 2^6147439 is an apocalyptic number.

6147439 is a deficient number, since it is larger than the sum of its proper divisors (166185).

6147439 is a wasteful number, since it uses less digits than its factorization.

6147439 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 166184.

The product of its digits is 18144, while the sum is 34.

The square root of 6147439 is about 2479.4029523254. The cubic root of 6147439 is about 183.1884449371.

The spelling of 6147439 in words is "six million, one hundred forty-seven thousand, four hundred thirty-nine".