4688641 has 2 divisors, whose sum is σ = 4688642. Its totient is φ = 4688640.

The previous prime is 4688581. The next prime is 4688653. The reversal of 4688641 is 1468864.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 4601025 + 87616 = 2145^2 + 296^2 .

It is a cyclic number.

It is not a de Polignac number, because 4688641 - 2¹¹ = 4686593 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 4688641.

It is not a weakly prime, because it can be changed into another prime (4688441) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2344320 + 2344321.

It is an arithmetic number, because the mean of its divisors is an integer number (2344321).

Almost surely, 2^4688641 is an apocalyptic number.

It is an amenable number.

4688641 is a deficient number, since it is larger than the sum of its proper divisors (1).

4688641 is an equidigital number, since it uses as much as digits as its factorization.

4688641 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 36864, while the sum is 37.

The square root of 4688641 is about 2165.3269960909. The cubic root of 4688641 is about 167.3718154944.

It can be divided in two parts, 4688 and 641, that added together give a square (5329 = 73²).

The spelling of 4688641 in words is "four million, six hundred eighty-eight thousand, six hundred forty-one".