4648561 has 2 divisors, whose sum is σ = 4648562. Its totient is φ = 4648560.

The previous prime is 4648519. The next prime is 4648591. The reversal of 4648561 is 1658464.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 4648336 + 225 = 2156^2 + 15^2 .

It is a cyclic number.

It is not a de Polignac number, because 4648561 - 2¹¹ = 4646513 is a prime.

It is not a weakly prime, because it can be changed into another prime (4648591) 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, 2324280 + 2324281.

It is an arithmetic number, because the mean of its divisors is an integer number (2324281).

Almost surely, 2^4648561 is an apocalyptic number.

It is an amenable number.

4648561 is a deficient number, since it is larger than the sum of its proper divisors (1).

4648561 is an equidigital number, since it uses as much as digits as its factorization.

4648561 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 23040, while the sum is 34.

The square root of 4648561 is about 2156.0521793315. The cubic root of 4648561 is about 166.8935341578.

It can be divided in two parts, 464 and 8561, that added together give a square (9025 = 95²).

The spelling of 4648561 in words is "four million, six hundred forty-eight thousand, five hundred sixty-one".