868216 has 16 divisors (see below), whose sum is σ = 1668240. Its totient is φ = 423360.

The previous prime is 868211. The next prime is 868229. The reversal of 868216 is 612868.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (868211) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 996 + ... + 1651.

It is an arithmetic number, because the mean of its divisors is an integer number (104265).

2⁸⁶⁸²¹⁶ is an apocalyptic number.

It is an amenable number.

868216 is a deficient number, since it is larger than the sum of its proper divisors (800024).

868216 is a wasteful number, since it uses less digits than its factorization.

868216 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2694 (or 2690 counting only the distinct ones).

The product of its digits is 4608, while the sum is 31.

The square root of 868216 is about 931.7810901709. The cubic root of 868216 is about 95.3987304014.

The spelling of 868216 in words is "eight hundred sixty-eight thousand, two hundred sixteen".