6539929 has 6 divisors (see below), whose sum is σ = 7188650. Its totient is φ = 5945280.

The previous prime is 6539927. The next prime is 6539957. The reversal of 6539929 is 9299356.

6539929 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 6512704 + 27225 = 2552^2 + 165^2 .

It is not a de Polignac number, because 6539929 - 2¹ = 6539927 is a prime.

It is a d-powerful number, because it can be written as 6⁸ + 5⁵ + 3¹⁴ + 9⁴ + 9⁴ + 2¹¹ + 9⁵ .

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6539927) 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, 26904 + ... + 27145.

Almost surely, 2^6539929 is an apocalyptic number.

It is an amenable number.

6539929 is a deficient number, since it is larger than the sum of its proper divisors (648721).

6539929 is a wasteful number, since it uses less digits than its factorization.

6539929 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54071 (or 54060 counting only the distinct ones).

The product of its digits is 131220, while the sum is 43.

The square root of 6539929 is about 2557.3284888727. The cubic root of 6539929 is about 187.0069201591.

It can be divided in two parts, 6 and 539929, that added together give a palindrome (539935).

The spelling of 6539929 in words is "six million, five hundred thirty-nine thousand, nine hundred twenty-nine".