4068539 has 6 divisors (see below), whose sum is σ = 4253676. Its totient is φ = 3891140.

The previous prime is 4068529. The next prime is 4068541. The reversal of 4068539 is 9358604.

It is not a de Polignac number, because 4068539 - 2⁸ = 4068283 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 4068499 and 4068508.

It is not an unprimeable number, because it can be changed into a prime (4068529) 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 5 ways as a sum of consecutive naturals, for example, 3317 + ... + 4374.

It is an arithmetic number, because the mean of its divisors is an integer number (708946).

Almost surely, 2^4068539 is an apocalyptic number.

4068539 is a deficient number, since it is larger than the sum of its proper divisors (185137).

4068539 is an equidigital number, since it uses as much as digits as its factorization.

4068539 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7737 (or 7714 counting only the distinct ones).

The product of its (nonzero) digits is 25920, while the sum is 35.

The square root of 4068539 is about 2017.0619722755. The cubic root of 4068539 is about 159.6416328262.

The spelling of 4068539 in words is "four million, sixty-eight thousand, five hundred thirty-nine".