3908169449 has 2 divisors, whose sum is σ = 3908169450. Its totient is φ = 3908169448.

The previous prime is 3908169403. The next prime is 3908169469. The reversal of 3908169449 is 9449618093.

3908169449 is digitally balanced in base 3, 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., 3588010000 + 320159449 = 59900^2 + 17893^2 .

It is a cyclic number.

It is not a de Polignac number, because 3908169449 - 2⁸ = 3908169193 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 3908169449.

It is not a weakly prime, because it can be changed into another prime (3908169469) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1954084724 + 1954084725.

It is an arithmetic number, because the mean of its divisors is an integer number (1954084725).

Almost surely, 2^3908169449 is an apocalyptic number.

It is an amenable number.

3908169449 is a deficient number, since it is larger than the sum of its proper divisors (1).

3908169449 is an equidigital number, since it uses as much as digits as its factorization.

3908169449 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1679616, while the sum is 53.

The square root of 3908169449 is about 62515.3537061097. The cubic root of 3908169449 is about 1575.1592279097.

The spelling of 3908169449 in words is "three billion, nine hundred eight million, one hundred sixty-nine thousand, four hundred forty-nine".