885611 has 2 divisors, whose sum is σ = 885612. Its totient is φ = 885610.

The previous prime is 885607. The next prime is 885623. The reversal of 885611 is 116588.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 885611 - 2² = 885607 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a nialpdrome in base 11.

It is not a weakly prime, because it can be changed into another prime (885811) 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, 442805 + 442806.

It is an arithmetic number, because the mean of its divisors is an integer number (442806).

2⁸⁸⁵⁶¹¹ is an apocalyptic number.

885611 is a deficient number, since it is larger than the sum of its proper divisors (1).

885611 is an equidigital number, since it uses as much as digits as its factorization.

885611 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1920, while the sum is 29.

The square root of 885611 is about 941.0690729165. The cubic root of 885611 is about 96.0316374313.

The spelling of 885611 in words is "eight hundred eighty-five thousand, six hundred eleven".