3971260393 has 2 divisors, whose sum is σ = 3971260394. Its totient is φ = 3971260392.

The previous prime is 3971260387. The next prime is 3971260411. The reversal of 3971260393 is 3930621793.

3971260393 is digitally balanced in base 3, 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., 3969378009 + 1882384 = 63003^2 + 1372^2 .

It is a cyclic number.

It is not a de Polignac number, because 3971260393 - 2²¹ = 3969163241 is a prime.

It is not a weakly prime, because it can be changed into another prime (3971260093) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1985630196 + 1985630197.

It is an arithmetic number, because the mean of its divisors is an integer number (1985630197).

Almost surely, 2^3971260393 is an apocalyptic number.

It is an amenable number.

3971260393 is a deficient number, since it is larger than the sum of its proper divisors (1).

3971260393 is an equidigital number, since it uses as much as digits as its factorization.

3971260393 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 183708, while the sum is 43.

The square root of 3971260393 is about 63017.9370735031. The cubic root of 3971260393 is about 1583.5901367939.

The spelling of 3971260393 in words is "three billion, nine hundred seventy-one million, two hundred sixty thousand, three hundred ninety-three".