3644764 has 24 divisors (see below), whose sum is σ = 6723360. Its totient is φ = 1725504.

The previous prime is 3644761. The next prime is 3644791. The reversal of 3644764 is 4674463.

It is a d-powerful number, because it can be written as 3⁸ + 6⁸ + 4 + 4² + 7⁵ + 6⁸ + 4⁹ .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3644761) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15802 + ... + 16030.

It is an arithmetic number, because the mean of its divisors is an integer number (280140).

Almost surely, 2^3644764 is an apocalyptic number.

It is an amenable number.

3644764 is a deficient number, since it is larger than the sum of its proper divisors (3078596).

3644764 is a wasteful number, since it uses less digits than its factorization.

3644764 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 429 (or 427 counting only the distinct ones).

The product of its digits is 48384, while the sum is 34.

The square root of 3644764 is about 1909.1265018327. The cubic root of 3644764 is about 153.8945136945.

The spelling of 3644764 in words is "three million, six hundred forty-four thousand, seven hundred sixty-four".