6739239 has 8 divisors (see below), whose sum is σ = 9676912. Its totient is φ = 4147200.

The previous prime is 6739231. The next prime is 6739267. The reversal of 6739239 is 9329376.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 6739239 - 2³ = 6739231 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (39), and also a Moran number because the ratio is a prime number: 172801 = 6739239 / (6 + 7 + 3 + 9 + 2 + 3 + 9).

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 6739197 and 6739206.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6739231) 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 7 ways as a sum of consecutive naturals, for example, 86362 + ... + 86439.

It is an arithmetic number, because the mean of its divisors is an integer number (1209614).

Almost surely, 2^6739239 is an apocalyptic number.

6739239 is a deficient number, since it is larger than the sum of its proper divisors (2937673).

6739239 is a wasteful number, since it uses less digits than its factorization.

6739239 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 172817.

The product of its digits is 61236, while the sum is 39.

The square root of 6739239 is about 2596.0044298884. The cubic root of 6739239 is about 188.8876743610.

The spelling of 6739239 in words is "six million, seven hundred thirty-nine thousand, two hundred thirty-nine".