6539044 has 6 divisors (see below), whose sum is σ = 11443334. Its totient is φ = 3269520.

The previous prime is 6539041. The next prime is 6539051. The reversal of 6539044 is 4409356.

It can be written as a sum of positive squares in only one way, i.e., 3849444 + 2689600 = 1962^2 + 1640^2 .

It is a junction number, because it is equal to n+sod(n) for n = 6538997 and 6539015.

It is not an unprimeable number, because it can be changed into a prime (6539041) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 817377 + ... + 817384.

Almost surely, 2^6539044 is an apocalyptic number.

It is an amenable number.

6539044 is a deficient number, since it is larger than the sum of its proper divisors (4904290).

6539044 is a wasteful number, since it uses less digits than its factorization.

6539044 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1634765 (or 1634763 counting only the distinct ones).

The product of its (nonzero) digits is 12960, while the sum is 31.

The square root of 6539044 is about 2557.1554508868. The cubic root of 6539044 is about 186.9984843596.

The spelling of 6539044 in words is "six million, five hundred thirty-nine thousand, forty-four".