3608320649 has 4 divisors (see below), whose sum is σ = 3611257860. Its totient is φ = 3605383440.

The previous prime is 3608320637. The next prime is 3608320657. The reversal of 3608320649 is 9460238063.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 3555975424 + 52345225 = 59632^2 + 7235^2 .

It is a cyclic number.

It is not a de Polignac number, because 3608320649 - 2¹⁶ = 3608255113 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3608320699) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1466762 + ... + 1469219.

It is an arithmetic number, because the mean of its divisors is an integer number (902814465).

Almost surely, 2^3608320649 is an apocalyptic number.

It is an amenable number.

3608320649 is a deficient number, since it is larger than the sum of its proper divisors (2937211).

3608320649 is a wasteful number, since it uses less digits than its factorization.

3608320649 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2937210.

The product of its (nonzero) digits is 186624, while the sum is 41.

The square root of 3608320649 is about 60069.2987223923. The cubic root of 3608320649 is about 1533.7987325090.

The spelling of 3608320649 in words is "three billion, six hundred eight million, three hundred twenty thousand, six hundred forty-nine".