4608661 has 2 divisors, whose sum is σ = 4608662. Its totient is φ = 4608660.

The previous prime is 4608631. The next prime is 4608689. The reversal of 4608661 is 1668064.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 4284900 + 323761 = 2070^2 + 569^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-4608661 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4608601) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2304330 + 2304331.

It is an arithmetic number, because the mean of its divisors is an integer number (2304331).

Almost surely, 2^4608661 is an apocalyptic number.

It is an amenable number.

4608661 is a deficient number, since it is larger than the sum of its proper divisors (1).

4608661 is an equidigital number, since it uses as much as digits as its factorization.

4608661 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6912, while the sum is 31.

The square root of 4608661 is about 2146.7792154761. The cubic root of 4608661 is about 166.4146622658.

The spelling of 4608661 in words is "four million, six hundred eight thousand, six hundred sixty-one".