896561 has 2 divisors, whose sum is σ = 896562. Its totient is φ = 896560.

The previous prime is 896557. The next prime is 896573. The reversal of 896561 is 165698.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 600625 + 295936 = 775^2 + 544^2 .

It is a cyclic number.

It is not a de Polignac number, because 896561 - 2² = 896557 is a prime.

It is a Sophie Germain prime.

It is an alternating number because its digits alternate between even and odd.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (896521) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 448280 + 448281.

It is an arithmetic number, because the mean of its divisors is an integer number (448281).

2⁸⁹⁶⁵⁶¹ is an apocalyptic number.

It is an amenable number.

896561 is a deficient number, since it is larger than the sum of its proper divisors (1).

896561 is an equidigital number, since it uses as much as digits as its factorization.

896561 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 12960, while the sum is 35.

The square root of 896561 is about 946.8690511364. The cubic root of 896561 is about 96.4258067533.

It can be divided in two parts, 8 and 96561, that added together give a palindrome (96569).

The spelling of 896561 in words is "eight hundred ninety-six thousand, five hundred sixty-one".