3956213797 has 2 divisors, whose sum is σ = 3956213798. Its totient is φ = 3956213796.

The previous prime is 3956213783. The next prime is 3956213813. The reversal of 3956213797 is 7973126593.

3956213797 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 3665818116 + 290395681 = 60546^2 + 17041^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3956213797 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3956213777) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1978106898 + 1978106899.

It is an arithmetic number, because the mean of its divisors is an integer number (1978106899).

Almost surely, 2^3956213797 is an apocalyptic number.

It is an amenable number.

3956213797 is a deficient number, since it is larger than the sum of its proper divisors (1).

3956213797 is an equidigital number, since it uses as much as digits as its factorization.

3956213797 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2143260, while the sum is 52.

The square root of 3956213797 is about 62898.4403383741. The cubic root of 3956213797 is about 1581.5875989383.

The spelling of 3956213797 in words is "three billion, nine hundred fifty-six million, two hundred thirteen thousand, seven hundred ninety-seven".