868944 has 40 divisors (see below), whose sum is σ = 2302432. Its totient is φ = 282240.

The previous prime is 868943. The next prime is 868951. The reversal of 868944 is 449868.

It is a plaindrome in base 13.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (868943) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1854 + ... + 2274.

2⁸⁶⁸⁹⁴⁴ 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 868944, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1151216).

868944 is an abundant number, since it is smaller than the sum of its proper divisors (1433488).

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

868944 is a wasteful number, since it uses less digits than its factorization.

868944 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 475 (or 469 counting only the distinct ones).

The product of its digits is 55296, while the sum is 39.

The square root of 868944 is about 932.1716580115. The cubic root of 868944 is about 95.4253869298.

The spelling of 868944 in words is "eight hundred sixty-eight thousand, nine hundred forty-four".