868217 has 8 divisors (see below), whose sum is σ = 1024512. Its totient is φ = 720000.

The previous prime is 868211. The next prime is 868229. The reversal of 868217 is 712868.

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 868217 - 2¹² = 864121 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (868211) 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, 1784 + ... + 2217.

It is an arithmetic number, because the mean of its divisors is an integer number (128064).

2⁸⁶⁸²¹⁷ is an apocalyptic number.

It is an amenable number.

868217 is a deficient number, since it is larger than the sum of its proper divisors (156295).

868217 is a wasteful number, since it uses less digits than its factorization.

868217 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4039.

The product of its digits is 5376, while the sum is 32.

The square root of 868217 is about 931.7816267774. The cubic root of 868217 is about 95.3987670277.

It can be divided in two parts, 868 and 217, that multiplied together give a square (188356 = 434²).

The spelling of 868217 in words is "eight hundred sixty-eight thousand, two hundred seventeen".