3938263369 has 2 divisors, whose sum is σ = 3938263370. Its totient is φ = 3938263368.

The previous prime is 3938263337. The next prime is 3938263379. The reversal of 3938263369 is 9633628393.

It is a happy number.

3938263369 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., 3423654144 + 514609225 = 58512^2 + 22685^2 .

It is a cyclic number.

It is not a de Polignac number, because 3938263369 - 2⁵ = 3938263337 is a prime.

It is a super-2 number, since 2×3938263369² = 31019836727214460322, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (3938263319) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1969131684 + 1969131685.

It is an arithmetic number, because the mean of its divisors is an integer number (1969131685).

Almost surely, 2^3938263369 is an apocalyptic number.

It is an amenable number.

3938263369 is a deficient number, since it is larger than the sum of its proper divisors (1).

3938263369 is an equidigital number, since it uses as much as digits as its factorization.

3938263369 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3779136, while the sum is 52.

The square root of 3938263369 is about 62755.5843650587. The cubic root of 3938263369 is about 1579.1919396584.

The spelling of 3938263369 in words is "three billion, nine hundred thirty-eight million, two hundred sixty-three thousand, three hundred sixty-nine".