6139479 has 4 divisors (see below), whose sum is σ = 8185976. Its totient is φ = 4092984.

The previous prime is 6139453. The next prime is 6139493. The reversal of 6139479 is 9749316.

6139479 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 6139479 - 2⁷ = 6139351 is a prime.

It is a D-number.

It is a Duffinian number.

6139479 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6139279) 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, 1023244 + ... + 1023249.

It is an arithmetic number, because the mean of its divisors is an integer number (2046494).

Almost surely, 2^6139479 is an apocalyptic number.

6139479 is a deficient number, since it is larger than the sum of its proper divisors (2046497).

6139479 is a wasteful number, since it uses less digits than its factorization.

6139479 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2046496.

The product of its digits is 40824, while the sum is 39.

The square root of 6139479 is about 2477.7972071984. The cubic root of 6139479 is about 183.1093437131.

The spelling of 6139479 in words is "six million, one hundred thirty-nine thousand, four hundred seventy-nine".