3643243 has 8 divisors (see below), whose sum is σ = 3732480. Its totient is φ = 3555240.

The previous prime is 3643217. The next prime is 3643267. The reversal of 3643243 is 3423463.

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 3643243 - 2⁹ = 3642731 is a prime.

It is a Duffinian number.

3643243 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (3643043) 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, 8238 + ... + 8668.

It is an arithmetic number, because the mean of its divisors is an integer number (466560).

Almost surely, 2^3643243 is an apocalyptic number.

3643243 is a deficient number, since it is larger than the sum of its proper divisors (89237).

3643243 is a wasteful number, since it uses less digits than its factorization.

3643243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 617.

The product of its digits is 5184, while the sum is 25.

The square root of 3643243 is about 1908.7281105490. The cubic root of 3643243 is about 153.8731034263.

The spelling of 3643243 in words is "three million, six hundred forty-three thousand, two hundred forty-three".