4563641 has 2 divisors, whose sum is σ = 4563642. Its totient is φ = 4563640.

The previous prime is 4563623. The next prime is 4563649. The reversal of 4563641 is 1463654.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2325625 + 2238016 = 1525^2 + 1496^2 .

It is a cyclic number.

It is not a de Polignac number, because 4563641 - 2⁶ = 4563577 is a prime.

It is not a weakly prime, because it can be changed into another prime (4563649) 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 as a sum of consecutive naturals, namely, 2281820 + 2281821.

It is an arithmetic number, because the mean of its divisors is an integer number (2281821).

Almost surely, 2^4563641 is an apocalyptic number.

It is an amenable number.

4563641 is a deficient number, since it is larger than the sum of its proper divisors (1).

4563641 is an equidigital number, since it uses as much as digits as its factorization.

4563641 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 8640, while the sum is 29.

The square root of 4563641 is about 2136.2680075309. The cubic root of 4563641 is about 165.8710107455.

The spelling of 4563641 in words is "four million, five hundred sixty-three thousand, six hundred forty-one".