867568 has 40 divisors (see below), whose sum is σ = 1871408. Its totient is φ = 387072.

The previous prime is 867563. The next prime is 867571. The reversal of 867568 is 865768.

It is an Ulam number.

It is a self number, because there is not a number n which added to its sum of digits gives 867568.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (867563) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8896 + ... + 8992.

2⁸⁶⁷⁵⁶⁸ is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 867568, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (935704).

867568 is an abundant number, since it is smaller than the sum of its proper divisors (1003840).

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

867568 is a wasteful number, since it uses less digits than its factorization.

867568 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 161 (or 155 counting only the distinct ones).

The product of its digits is 80640, while the sum is 40.

The square root of 867568 is about 931.4333041072. The cubic root of 867568 is about 95.3749906241.

It can be divided in two parts, 8 and 67568, that added together give a palindrome (67576).

The spelling of 867568 in words is "eight hundred sixty-seven thousand, five hundred sixty-eight".