3649108369 has 2 divisors, whose sum is σ = 3649108370. Its totient is φ = 3649108368.

The previous prime is 3649108349. The next prime is 3649108391. The reversal of 3649108369 is 9638019463.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 3015327744 + 633780625 = 54912^2 + 25175^2 .

It is a cyclic number.

It is not a de Polignac number, because 3649108369 - 2⁷ = 3649108241 is a prime.

It is a super-2 number, since 2×3649108369² = 26631983777411680322, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (3649108319) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1824554184 + 1824554185.

It is an arithmetic number, because the mean of its divisors is an integer number (1824554185).

Almost surely, 2^3649108369 is an apocalyptic number.

It is an amenable number.

3649108369 is a deficient number, since it is larger than the sum of its proper divisors (1).

3649108369 is an equidigital number, since it uses as much as digits as its factorization.

3649108369 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 839808, while the sum is 49.

The square root of 3649108369 is about 60407.8502266055. The cubic root of 3649108369 is about 1539.5563416709.

The spelling of 3649108369 in words is "three billion, six hundred forty-nine million, one hundred eight thousand, three hundred sixty-nine".