3644925 has 24 divisors (see below), whose sum is σ = 6291264. Its totient is φ = 1858560.

The previous prime is 3644899. The next prime is 3644947. The reversal of 3644925 is 5294463.

It is not a de Polignac number, because 3644925 - 2¹⁰ = 3643901 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 669 + ... + 2781.

It is an arithmetic number, because the mean of its divisors is an integer number (262136).

Almost surely, 2^3644925 is an apocalyptic number.

It is an amenable number.

3644925 is a deficient number, since it is larger than the sum of its proper divisors (2646339).

3644925 is a wasteful number, since it uses less digits than its factorization.

3644925 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2149 (or 2144 counting only the distinct ones).

The product of its digits is 25920, while the sum is 33.

The square root of 3644925 is about 1909.1686672476. The cubic root of 3644925 is about 153.8967796530.

The spelling of 3644925 in words is "three million, six hundred forty-four thousand, nine hundred twenty-five".