4643563 has 2 divisors, whose sum is σ = 4643564. Its totient is φ = 4643562.

The previous prime is 4643497. The next prime is 4643579. The reversal of 4643563 is 3653464.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-4643563 is a prime.

4643563 is a lucky number.

It is not a weakly prime, because it can be changed into another prime (4643593) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2321781 + 2321782.

It is an arithmetic number, because the mean of its divisors is an integer number (2321782).

Almost surely, 2^4643563 is an apocalyptic number.

4643563 is a deficient number, since it is larger than the sum of its proper divisors (1).

4643563 is an equidigital number, since it uses as much as digits as its factorization.

4643563 is an evil number, because the sum of its binary digits is even.

The product of its digits is 25920, while the sum is 31.

The square root of 4643563 is about 2154.8928047585. The cubic root of 4643563 is about 166.8336996551.

Subtracting from 4643563 its reverse (3653464), we obtain a palindrome (990099).

The spelling of 4643563 in words is "four million, six hundred forty-three thousand, five hundred sixty-three".