885869 has 2 divisors, whose sum is σ = 885870. Its totient is φ = 885868.

The previous prime is 885839. The next prime is 885881. The reversal of 885869 is 968588.

885869 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., 570025 + 315844 = 755^2 + 562^2 .

It is a cyclic number.

It is not a de Polignac number, because 885869 - 2¹⁶ = 820333 is a prime.

It is a super-2 number, since 2×885869² = 1569527770322, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (885839) 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, 442934 + 442935.

It is an arithmetic number, because the mean of its divisors is an integer number (442935).

2⁸⁸⁵⁸⁶⁹ is an apocalyptic number.

It is an amenable number.

885869 is a deficient number, since it is larger than the sum of its proper divisors (1).

885869 is an equidigital number, since it uses as much as digits as its factorization.

885869 is an evil number, because the sum of its binary digits is even.

The product of its digits is 138240, while the sum is 44.

The square root of 885869 is about 941.2061410764. The cubic root of 885869 is about 96.0409619756.

The spelling of 885869 in words is "eight hundred eighty-five thousand, eight hundred sixty-nine".