868668 has 24 divisors (see below), whose sum is σ = 2042880. Its totient is φ = 287280.

The previous prime is 868663. The next prime is 868669. The reversal of 868668 is 866868.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (868663) 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, 2103 + ... + 2481.

It is an arithmetic number, because the mean of its divisors is an integer number (85120).

2⁸⁶⁸⁶⁶⁸ is an apocalyptic number.

It is an amenable number.

868668 is an abundant number, since it is smaller than the sum of its proper divisors (1174212).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

868668 is a wasteful number, since it uses less digits than its factorization.

868668 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 577 (or 575 counting only the distinct ones).

The product of its digits is 110592, while the sum is 42.

The square root of 868668 is about 932.0236048513. The cubic root of 868668 is about 95.4152826362.

The spelling of 868668 in words is "eight hundred sixty-eight thousand, six hundred sixty-eight".