3945839059 has 2 divisors, whose sum is σ = 3945839060. Its totient is φ = 3945839058.

The previous prime is 3945839039. The next prime is 3945839069. The reversal of 3945839059 is 9509385493.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3945839059 is a prime.

It is not a weakly prime, because it can be changed into another prime (3945839039) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1972919529 + 1972919530.

It is an arithmetic number, because the mean of its divisors is an integer number (1972919530).

Almost surely, 2^3945839059 is an apocalyptic number.

3945839059 is a deficient number, since it is larger than the sum of its proper divisors (1).

3945839059 is an equidigital number, since it uses as much as digits as its factorization.

3945839059 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5248800, while the sum is 55.

The square root of 3945839059 is about 62815.9140584613. The cubic root of 3945839059 is about 1580.2038751767.

The spelling of 3945839059 in words is "three billion, nine hundred forty-five million, eight hundred thirty-nine thousand, fifty-nine".