888665 has 8 divisors (see below), whose sum is σ = 1078920. Its totient is φ = 702592.

The previous prime is 888661. The next prime is 888683. The reversal of 888665 is 566888.

It can be written as a sum of positive squares in 4 ways, for example, as 21904 + 866761 = 148^2 + 931^2 .

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 888665 - 2² = 888661 is a prime.

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 (888661) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 554 + ... + 1443.

It is an arithmetic number, because the mean of its divisors is an integer number (134865).

2⁸⁸⁸⁶⁶⁵ is an apocalyptic number.

It is an amenable number.

888665 is a deficient number, since it is larger than the sum of its proper divisors (190255).

888665 is a wasteful number, since it uses less digits than its factorization.

888665 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2091.

The product of its digits is 92160, while the sum is 41.

The square root of 888665 is about 942.6902990909. The cubic root of 888665 is about 96.1418980846.

The spelling of 888665 in words is "eight hundred eighty-eight thousand, six hundred sixty-five".