3649617049 has 4 divisors (see below), whose sum is σ = 3930356836. Its totient is φ = 3368877264.

The previous prime is 3649617031. The next prime is 3649617053. The reversal of 3649617049 is 9407169463.

3649617049 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 9407169463 = 109 ⋅86304307.

It can be written as a sum of positive squares in 2 ways, for example, as 2149991424 + 1499625625 = 46368^2 + 38725^2 .

It is a cyclic number.

It is not a de Polignac number, because 3649617049 - 2⁵ = 3649617017 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 3649616993 and 3649617011.

It is not an unprimeable number, because it can be changed into a prime (3649617029) 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, 140369874 + ... + 140369899.

It is an arithmetic number, because the mean of its divisors is an integer number (982589209).

Almost surely, 2^3649617049 is an apocalyptic number.

It is an amenable number.

3649617049 is a deficient number, since it is larger than the sum of its proper divisors (280739787).

3649617049 is a wasteful number, since it uses less digits than its factorization.

3649617049 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 280739786.

The product of its (nonzero) digits is 979776, while the sum is 49.

The square root of 3649617049 is about 60412.0604598122. The cubic root of 3649617049 is about 1539.6278755959.

The spelling of 3649617049 in words is "three billion, six hundred forty-nine million, six hundred seventeen thousand, forty-nine".