3966328439 has 2 divisors, whose sum is σ = 3966328440. Its totient is φ = 3966328438.

The previous prime is 3966328433. The next prime is 3966328441. The reversal of 3966328439 is 9348236693.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 3966328439 - 2⁴ = 3966328423 is a prime.

It is a super-2 number, since 2×3966328439² = 31463522572040353442, which contains 22 as substring.

Together with 3966328441, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3966328433) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1983164219 + 1983164220.

It is an arithmetic number, because the mean of its divisors is an integer number (1983164220).

Almost surely, 2^3966328439 is an apocalyptic number.

3966328439 is a deficient number, since it is larger than the sum of its proper divisors (1).

3966328439 is an equidigital number, since it uses as much as digits as its factorization.

3966328439 is an evil number, because the sum of its binary digits is even.

The product of its digits is 5038848, while the sum is 53.

The square root of 3966328439 is about 62978.7935657710. The cubic root of 3966328439 is about 1582.9343056170.

The spelling of 3966328439 in words is "three billion, nine hundred sixty-six million, three hundred twenty-eight thousand, four hundred thirty-nine".