3644489 has 8 divisors (see below), whose sum is σ = 3736320. Its totient is φ = 3553776.

The previous prime is 3644483. The next prime is 3644497. The reversal of 3644489 is 9844463.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3644489 is a prime.

It is a super-2 number, since 2×3644489² = 26564600142242, which contains 22 as substring.

It is an Ulam number.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (3644483) 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, 13019 + ... + 13295.

It is an arithmetic number, because the mean of its divisors is an integer number (467040).

Almost surely, 2^3644489 is an apocalyptic number.

It is an amenable number.

3644489 is a deficient number, since it is larger than the sum of its proper divisors (91831).

3644489 is a wasteful number, since it uses less digits than its factorization.

3644489 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 559.

The product of its digits is 82944, while the sum is 38.

The square root of 3644489 is about 1909.0544780074. The cubic root of 3644489 is about 153.8906431141.

The spelling of 3644489 in words is "three million, six hundred forty-four thousand, four hundred eighty-nine".