4263641 has 2 divisors, whose sum is σ = 4263642. Its totient is φ = 4263640.

The previous prime is 4263607. The next prime is 4263659. The reversal of 4263641 is 1463624.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2468041 + 1795600 = 1571^2 + 1340^2 .

It is a cyclic number.

It is not a de Polignac number, because 4263641 - 2¹⁰ = 4262617 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 4263641.

It is not a weakly prime, because it can be changed into another prime (4263341) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2131820 + 2131821.

It is an arithmetic number, because the mean of its divisors is an integer number (2131821).

Almost surely, 2^4263641 is an apocalyptic number.

It is an amenable number.

4263641 is a deficient number, since it is larger than the sum of its proper divisors (1).

4263641 is an equidigital number, since it uses as much as digits as its factorization.

4263641 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3456, while the sum is 26.

The square root of 4263641 is about 2064.8585907999. The cubic root of 4263641 is about 162.1537051578.

The spelling of 4263641 in words is "four million, two hundred sixty-three thousand, six hundred forty-one".