3649617 has 24 divisors (see below), whose sum is σ = 5713344. Its totient is φ = 2323728.

The previous prime is 3649609. The next prime is 3649637. The reversal of 3649617 is 7169463.

3649617 is a `hidden beast` number, since 3 + 649 + 6 + 1 + 7 = 666.

3649617 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 3649617 - 2³ = 3649609 is a prime.

It is not an unprimeable number, because it can be changed into a prime (3649637) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 5263 + ... + 5915.

It is an arithmetic number, because the mean of its divisors is an integer number (238056).

Almost surely, 2^3649617 is an apocalyptic number.

It is an amenable number.

3649617 is a deficient number, since it is larger than the sum of its proper divisors (2063727).

3649617 is an equidigital number, since it uses as much as digits as its factorization.

3649617 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 691 (or 679 counting only the distinct ones).

The product of its digits is 27216, while the sum is 36.

The square root of 3649617 is about 1910.3970791435. The cubic root of 3649617 is about 153.9627868706.

The spelling of 3649617 in words is "three million, six hundred forty-nine thousand, six hundred seventeen".