4427641 has 2 divisors, whose sum is σ = 4427642. Its totient is φ = 4427640.

The previous prime is 4427639. The next prime is 4427659. The reversal of 4427641 is 1467244.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 4243600 + 184041 = 2060^2 + 429^2 .

It is a cyclic number.

It is not a de Polignac number, because 4427641 - 2¹ = 4427639 is a prime.

Together with 4427639, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (4427611) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2213820 + 2213821.

It is an arithmetic number, because the mean of its divisors is an integer number (2213821).

Almost surely, 2^4427641 is an apocalyptic number.

It is an amenable number.

4427641 is a deficient number, since it is larger than the sum of its proper divisors (1).

4427641 is an equidigital number, since it uses as much as digits as its factorization.

4427641 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 5376, while the sum is 28.

The square root of 4427641 is about 2104.1960459995. The cubic root of 4427641 is about 164.2066723200.

The spelling of 4427641 in words is "four million, four hundred twenty-seven thousand, six hundred forty-one".