3966344887 has 2 divisors, whose sum is σ = 3966344888. Its totient is φ = 3966344886.

The previous prime is 3966344831. The next prime is 3966344911. The reversal of 3966344887 is 7884436693.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 3966344887 - 2¹¹ = 3966342839 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3966344827) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1983172443 + 1983172444.

It is an arithmetic number, because the mean of its divisors is an integer number (1983172444).

Almost surely, 2^3966344887 is an apocalyptic number.

3966344887 is a deficient number, since it is larger than the sum of its proper divisors (1).

3966344887 is an equidigital number, since it uses as much as digits as its factorization.

3966344887 is an evil number, because the sum of its binary digits is even.

The product of its digits is 20901888, while the sum is 58.

The square root of 3966344887 is about 62978.9241492739. The cubic root of 3966344887 is about 1582.9364937084.

The spelling of 3966344887 in words is "three billion, nine hundred sixty-six million, three hundred forty-four thousand, eight hundred eighty-seven".