888865 has 8 divisors (see below), whose sum is σ = 1071720. Its totient is φ = 707712.

The previous prime is 888857. The next prime is 888869. The reversal of 888865 is 568888.

It can be written as a sum of positive squares in 4 ways, for example, as 126736 + 762129 = 356^2 + 873^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 888865 - 2³ = 888857 is a prime.

It is an Ulam number.

It is a plaindrome in base 11.

It is a nialpdrome in base 10.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (888869) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1717 + ... + 2173.

It is an arithmetic number, because the mean of its divisors is an integer number (133965).

2⁸⁸⁸⁸⁶⁵ is an apocalyptic number.

It is an amenable number.

888865 is a deficient number, since it is larger than the sum of its proper divisors (182855).

888865 is a wasteful number, since it uses less digits than its factorization.

888865 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 851.

The product of its digits is 122880, while the sum is 43.

The square root of 888865 is about 942.7963725004. The cubic root of 888865 is about 96.1491100026.

The spelling of 888865 in words is "eight hundred eighty-eight thousand, eight hundred sixty-five".