4603661 has 2 divisors, whose sum is σ = 4603662. Its totient is φ = 4603660.

The previous prime is 4603639. The next prime is 4603667. The reversal of 4603661 is 1663064.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 4541161 + 62500 = 2131^2 + 250^2 .

It is a cyclic number.

It is not a de Polignac number, because 4603661 - 2¹⁸ = 4341517 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 4603661.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4603667) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2301830 + 2301831.

It is an arithmetic number, because the mean of its divisors is an integer number (2301831).

Almost surely, 2^4603661 is an apocalyptic number.

It is an amenable number.

4603661 is a deficient number, since it is larger than the sum of its proper divisors (1).

4603661 is an equidigital number, since it uses as much as digits as its factorization.

4603661 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2592, while the sum is 26.

The square root of 4603661 is about 2145.6143642323. The cubic root of 4603661 is about 166.3544586332.

The spelling of 4603661 in words is "four million, six hundred three thousand, six hundred sixty-one".