3644447 has 8 divisors (see below), whose sum is σ = 3884160. Its totient is φ = 3409560.

The previous prime is 3644437. The next prime is 3644479. The reversal of 3644447 is 7444463.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 3644447 - 2¹⁴ = 3628063 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3644437) 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, 422 + ... + 2732.

It is an arithmetic number, because the mean of its divisors is an integer number (485520).

Almost surely, 2^3644447 is an apocalyptic number.

3644447 is a deficient number, since it is larger than the sum of its proper divisors (239713).

3644447 is a wasteful number, since it uses less digits than its factorization.

3644447 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2413.

The product of its digits is 32256, while the sum is 32.

The square root of 3644447 is about 1909.0434777658. The cubic root of 3644447 is about 153.8900519538.

The spelling of 3644447 in words is "three million, six hundred forty-four thousand, four hundred forty-seven".