3959599249 has 2 divisors, whose sum is σ = 3959599250. Its totient is φ = 3959599248.

The previous prime is 3959599223. The next prime is 3959599309. The reversal of 3959599249 is 9429959593.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 3804422400 + 155176849 = 61680^2 + 12457^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3959599249 is a prime.

It is not a weakly prime, because it can be changed into another prime (3959599219) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1979799624 + 1979799625.

It is an arithmetic number, because the mean of its divisors is an integer number (1979799625).

Almost surely, 2^3959599249 is an apocalyptic number.

It is an amenable number.

3959599249 is a deficient number, since it is larger than the sum of its proper divisors (1).

3959599249 is an equidigital number, since it uses as much as digits as its factorization.

3959599249 is an evil number, because the sum of its binary digits is even.

The product of its digits is 35429400, while the sum is 64.

The square root of 3959599249 is about 62925.3466339280. The cubic root of 3959599249 is about 1582.0386077897.

The spelling of 3959599249 in words is "three billion, nine hundred fifty-nine million, five hundred ninety-nine thousand, two hundred forty-nine".