4573643 has 4 divisors (see below), whose sum is σ = 4581360. Its totient is φ = 4565928.

The previous prime is 4573637. The next prime is 4573649. The reversal of 4573643 is 3463754.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (4573637) and next prime (4573649).

It is a cyclic number.

It is not a de Polignac number, because 4573643 - 2⁴ = 4573627 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4573649) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2888 + ... + 4181.

It is an arithmetic number, because the mean of its divisors is an integer number (1145340).

Almost surely, 2^4573643 is an apocalyptic number.

4573643 is a deficient number, since it is larger than the sum of its proper divisors (7717).

4573643 is an equidigital number, since it uses as much as digits as its factorization.

4573643 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7716.

The product of its digits is 30240, while the sum is 32.

The square root of 4573643 is about 2138.6077246657. The cubic root of 4573643 is about 165.9921005580.

The spelling of 4573643 in words is "four million, five hundred seventy-three thousand, six hundred forty-three".