3943744349 has 2 divisors, whose sum is σ = 3943744350. Its totient is φ = 3943744348.

The previous prime is 3943744319. The next prime is 3943744351. The reversal of 3943744349 is 9434473493.

It is a happy number.

3943744349 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2626562500 + 1317181849 = 51250^2 + 36293^2 .

It is a cyclic number.

It is not a de Polignac number, because 3943744349 - 2⁸ = 3943744093 is a prime.

Together with 3943744351, it forms a pair of twin primes.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 3943744297 and 3943744306.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3943744309) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1971872174 + 1971872175.

It is an arithmetic number, because the mean of its divisors is an integer number (1971872175).

Almost surely, 2^3943744349 is an apocalyptic number.

It is an amenable number.

3943744349 is a deficient number, since it is larger than the sum of its proper divisors (1).

3943744349 is an equidigital number, since it uses as much as digits as its factorization.

3943744349 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3919104, while the sum is 50.

The square root of 3943744349 is about 62799.2384428346. The cubic root of 3943744349 is about 1579.9242004175.

The spelling of 3943744349 in words is "three billion, nine hundred forty-three million, seven hundred forty-four thousand, three hundred forty-nine".