3941381893 has 2 divisors, whose sum is σ = 3941381894. Its totient is φ = 3941381892.

The previous prime is 3941381827. The next prime is 3941381921. The reversal of 3941381893 is 3981831493.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 3641156964 + 300224929 = 60342^2 + 17327^2 .

It is a cyclic number.

It is not a de Polignac number, because 3941381893 - 2¹³ = 3941373701 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3941381293) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1970690946 + 1970690947.

It is an arithmetic number, because the mean of its divisors is an integer number (1970690947).

Almost surely, 2^3941381893 is an apocalyptic number.

It is an amenable number.

3941381893 is a deficient number, since it is larger than the sum of its proper divisors (1).

3941381893 is an equidigital number, since it uses as much as digits as its factorization.

3941381893 is an evil number, because the sum of its binary digits is even.

The product of its digits is 559872, while the sum is 49.

The square root of 3941381893 is about 62780.4260339160. The cubic root of 3941381893 is about 1579.6086587537.

Subtracting 3941381893 from its reverse (3981831493), we obtain a square (40449600 = 6360²).

The spelling of 3941381893 in words is "three billion, nine hundred forty-one million, three hundred eighty-one thousand, eight hundred ninety-three".