868938 has 32 divisors (see below), whose sum is σ = 2104704. Its totient is φ = 233472.

The previous prime is 868937. The next prime is 868939. The reversal of 868938 is 839868.

It is an interprime number because it is at equal distance from previous prime (868937) and next prime (868939).

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a self number, because there is not a number n which added to its sum of digits gives 868938.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (868937) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 106 + ... + 1322.

It is an arithmetic number, because the mean of its divisors is an integer number (65772).

2⁸⁶⁸⁹³⁸ is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 868938, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1052352).

868938 is an abundant number, since it is smaller than the sum of its proper divisors (1235766).

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

868938 is a wasteful number, since it uses less digits than its factorization.

868938 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1246.

The product of its digits is 82944, while the sum is 42.

The square root of 868938 is about 932.1684397146. The cubic root of 868938 is about 95.4251672940.

The spelling of 868938 in words is "eight hundred sixty-eight thousand, nine hundred thirty-eight".