3969426379 has 2 divisors, whose sum is σ = 3969426380. Its totient is φ = 3969426378.

The previous prime is 3969426347. The next prime is 3969426389. The reversal of 3969426379 is 9736249693.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 3969426379 - 2⁵ = 3969426347 is a prime.

It is not a weakly prime, because it can be changed into another prime (3969426389) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1984713189 + 1984713190.

It is an arithmetic number, because the mean of its divisors is an integer number (1984713190).

Almost surely, 2^3969426379 is an apocalyptic number.

3969426379 is a deficient number, since it is larger than the sum of its proper divisors (1).

3969426379 is an equidigital number, since it uses as much as digits as its factorization.

3969426379 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 13226976, while the sum is 58.

The square root of 3969426379 is about 63003.3838694399. The cubic root of 3969426379 is about 1583.3463205238.

The spelling of 3969426379 in words is "three billion, nine hundred sixty-nine million, four hundred twenty-six thousand, three hundred seventy-nine".