836360561 has 2 divisors, whose sum is σ = 836360562. Its totient is φ = 836360560.

The previous prime is 836360537. The next prime is 836360579. The reversal of 836360561 is 165063638.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 513475600 + 322884961 = 22660^2 + 17969^2 .

It is a cyclic number.

It is not a de Polignac number, because 836360561 - 2¹⁴ = 836344177 is a prime.

It is not a weakly prime, because it can be changed into another prime (836360761) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 418180280 + 418180281.

It is an arithmetic number, because the mean of its divisors is an integer number (418180281).

Almost surely, 2^836360561 is an apocalyptic number.

It is an amenable number.

836360561 is a deficient number, since it is larger than the sum of its proper divisors (1).

836360561 is an equidigital number, since it uses as much as digits as its factorization.

836360561 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 77760, while the sum is 38.

The square root of 836360561 is about 28919.8990489248. The cubic root of 836360561 is about 942.1741439789.

The spelling of 836360561 in words is "eight hundred thirty-six million, three hundred sixty thousand, five hundred sixty-one".