4642563 has 4 divisors (see below), whose sum is σ = 6190088. Its totient is φ = 3095040.

The previous prime is 4642549. The next prime is 4642601. The reversal of 4642563 is 3652464.

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

It is not a de Polignac number, because 4642563 - 2⁵ = 4642531 is a prime.

It is a D-number.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 4642563.

It is not an unprimeable number, because it can be changed into a prime (4642163) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 773758 + ... + 773763.

It is an arithmetic number, because the mean of its divisors is an integer number (1547522).

Almost surely, 2^4642563 is an apocalyptic number.

4642563 is a deficient number, since it is larger than the sum of its proper divisors (1547525).

4642563 is a wasteful number, since it uses less digits than its factorization.

4642563 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1547524.

The product of its digits is 17280, while the sum is 30.

The square root of 4642563 is about 2154.6607621619. The cubic root of 4642563 is about 166.8217228119.

Subtracting from 4642563 its reverse (3652464), we obtain a palindrome (990099).

The spelling of 4642563 in words is "four million, six hundred forty-two thousand, five hundred sixty-three".