608836561 has 2 divisors, whose sum is σ = 608836562. Its totient is φ = 608836560.

The previous prime is 608836549. The next prime is 608836601. The reversal of 608836561 is 165638806.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 546110161 + 62726400 = 23369^2 + 7920^2 .

It is a cyclic number.

It is not a de Polignac number, because 608836561 - 2⁹ = 608836049 is a prime.

It is not a weakly prime, because it can be changed into another prime (608836061) 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, 304418280 + 304418281.

It is an arithmetic number, because the mean of its divisors is an integer number (304418281).

Almost surely, 2^608836561 is an apocalyptic number.

It is an amenable number.

608836561 is a deficient number, since it is larger than the sum of its proper divisors (1).

608836561 is an equidigital number, since it uses as much as digits as its factorization.

608836561 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 207360, while the sum is 43.

The square root of 608836561 is about 24674.6136950510. The cubic root of 608836561 is about 847.5530831722.

The spelling of 608836561 in words is "six hundred eight million, eight hundred thirty-six thousand, five hundred sixty-one".