832318561 has 2 divisors, whose sum is σ = 832318562. Its totient is φ = 832318560.

The previous prime is 832318559. The next prime is 832318567. The reversal of 832318561 is 165813238.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 831976336 + 342225 = 28844^2 + 585^2 .

It is a cyclic number.

It is not a de Polignac number, because 832318561 - 2¹ = 832318559 is a prime.

It is a super-2 number, since 2×832318561² = 1385508373970221442, which contains 22 as substring.

Together with 832318559, it forms a pair of twin primes.

It is a self number, because there is not a number n which added to its sum of digits gives 832318561.

It is not a weakly prime, because it can be changed into another prime (832318567) 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, 416159280 + 416159281.

It is an arithmetic number, because the mean of its divisors is an integer number (416159281).

Almost surely, 2^832318561 is an apocalyptic number.

It is an amenable number.

832318561 is a deficient number, since it is larger than the sum of its proper divisors (1).

832318561 is an equidigital number, since it uses as much as digits as its factorization.

832318561 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 34560, while the sum is 37.

The square root of 832318561 is about 28849.9317330215. The cubic root of 832318561 is about 940.6538987983.

The spelling of 832318561 in words is "eight hundred thirty-two million, three hundred eighteen thousand, five hundred sixty-one".