3641644 has 12 divisors (see below), whose sum is σ = 6397384. Its totient is φ = 1813824.

The previous prime is 3641641. The next prime is 3641647. The reversal of 3641644 is 4461463.

It is a happy number.

3641644 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (3641641) and next prime (3641647).

It is a hoax number, since the sum of its digits (28) coincides with the sum of the digits of its distinct prime factors.

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 3 ways as a sum of consecutive naturals, for example, 477 + ... + 2740.

Almost surely, 2^3641644 is an apocalyptic number.

It is an amenable number.

3641644 is a deficient number, since it is larger than the sum of its proper divisors (2755740).

3641644 is a wasteful number, since it uses less digits than its factorization.

3641644 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3504 (or 3502 counting only the distinct ones).

The product of its digits is 6912, while the sum is 28.

The square root of 3641644 is about 1908.3091992652. The cubic root of 3641644 is about 153.8505887696.

The spelling of 3641644 in words is "three million, six hundred forty-one thousand, six hundred forty-four".