3959539 has 2 divisors, whose sum is σ = 3959540. Its totient is φ = 3959538.

The previous prime is 3959531. The next prime is 3959551. The reversal of 3959539 is 9359593.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 3959539 - 2³ = 3959531 is a prime.

3959539 is a lucky number.

It is a junction number, because it is equal to n+sod(n) for n = 3959495 and 3959504.

It is not a weakly prime, because it can be changed into another prime (3959531) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1979769 + 1979770.

It is an arithmetic number, because the mean of its divisors is an integer number (1979770).

Almost surely, 2^3959539 is an apocalyptic number.

3959539 is a deficient number, since it is larger than the sum of its proper divisors (1).

3959539 is an equidigital number, since it uses as much as digits as its factorization.

3959539 is an evil number, because the sum of its binary digits is even.

The product of its digits is 164025, while the sum is 43.

The square root of 3959539 is about 1989.8590402338. The cubic root of 3959539 is about 158.2030583684.

The spelling of 3959539 in words is "three million, nine hundred fifty-nine thousand, five hundred thirty-nine".