885881 has 2 divisors, whose sum is σ = 885882. Its totient is φ = 885880.

The previous prime is 885869. The next prime is 885883. The reversal of 885881 is 188588.

885881 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 885481 + 400 = 941^2 + 20^2 .

It is a cyclic number.

It is not a de Polignac number, because 885881 - 2¹⁰ = 884857 is a prime.

It is a super-2 number, since 2×885881² = 1569570292322, which contains 22 as substring.

Together with 885883, it forms a pair of twin primes.

It is a Chen prime.

It is an Ulam number.

It is not a weakly prime, because it can be changed into another prime (885883) by changing a digit.

It is a good prime.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 442940 + 442941.

It is an arithmetic number, because the mean of its divisors is an integer number (442941).

2⁸⁸⁵⁸⁸¹ is an apocalyptic number.

It is an amenable number.

885881 is a deficient number, since it is larger than the sum of its proper divisors (1).

885881 is an equidigital number, since it uses as much as digits as its factorization.

885881 is an evil number, because the sum of its binary digits is even.

The product of its digits is 20480, while the sum is 38.

The square root of 885881 is about 941.2125158539. The cubic root of 885881 is about 96.0413956312.

The spelling of 885881 in words is "eight hundred eighty-five thousand, eight hundred eighty-one".