3641649 has 16 divisors (see below), whose sum is σ = 5332224. Its totient is φ = 2192400.

The previous prime is 3641647. The next prime is 3641653. The reversal of 3641649 is 9461463.

3641649 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 3641649 - 2¹ = 3641647 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (3641641) 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 15 ways as a sum of consecutive naturals, for example, 6702 + ... + 7224.

It is an arithmetic number, because the mean of its divisors is an integer number (333264).

Almost surely, 2^3641649 is an apocalyptic number.

It is an amenable number.

3641649 is a deficient number, since it is larger than the sum of its proper divisors (1690575).

3641649 is a wasteful number, since it uses less digits than its factorization.

3641649 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 748.

The product of its digits is 15552, while the sum is 33.

The square root of 3641649 is about 1908.3105093249. The cubic root of 3641649 is about 153.8506591822.

The spelling of 3641649 in words is "three million, six hundred forty-one thousand, six hundred forty-nine".