6139847 has 6 divisors (see below), whose sum is σ = 7142328. Its totient is φ = 5262684.

The previous prime is 6139807. The next prime is 6139849. The reversal of 6139847 is 7489316.

It is not a de Polignac number, because 6139847 - 2⁸ = 6139591 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 6139847.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6139849) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 62603 + ... + 62700.

It is an arithmetic number, because the mean of its divisors is an integer number (1190388).

Almost surely, 2^6139847 is an apocalyptic number.

6139847 is a deficient number, since it is larger than the sum of its proper divisors (1002481).

6139847 is a wasteful number, since it uses less digits than its factorization.

6139847 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 125317 (or 125310 counting only the distinct ones).

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

The square root of 6139847 is about 2477.8714655930. The cubic root of 6139847 is about 183.1130021610.

The spelling of 6139847 in words is "six million, one hundred thirty-nine thousand, eight hundred forty-seven".