3649108391 has 2 divisors, whose sum is σ = 3649108392. Its totient is φ = 3649108390.

The previous prime is 3649108369. The next prime is 3649108417. The reversal of 3649108391 is 1938019463.

It is a weak prime.

It is an emirp because it is prime and its reverse (1938019463) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 3649108391 - 2²⁶ = 3581999527 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3649105391) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1824554195 + 1824554196.

It is an arithmetic number, because the mean of its divisors is an integer number (1824554196).

Almost surely, 2^3649108391 is an apocalyptic number.

3649108391 is a deficient number, since it is larger than the sum of its proper divisors (1).

3649108391 is an equidigital number, since it uses as much as digits as its factorization.

3649108391 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 139968, while the sum is 44.

The square root of 3649108391 is about 60407.8504087010. The cubic root of 3649108391 is about 1539.5563447648.

The spelling of 3649108391 in words is "three billion, six hundred forty-nine million, one hundred eight thousand, three hundred ninety-one".