1000868 has 36 divisors (see below), whose sum is σ = 2043888. Its totient is φ = 425040.

The previous prime is 1000861. The next prime is 1000889. The reversal of 1000868 is 8680001.

1000868 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Smith number, since the sum of its digits (23) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (23).

It is not an unprimeable number, because it can be changed into a prime (1000861) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 23255 + ... + 23297.

2^1000868 is an apocalyptic number.

It is an amenable number.

1000868 is an abundant number, since it is smaller than the sum of its proper divisors (1043020).

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

1000868 is a wasteful number, since it uses less digits than its factorization.

1000868 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 104 (or 79 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 23.

The square root of 1000868 is about 1000.4339058629. The cubic root of 1000868 is about 100.0289249660.

Adding to 1000868 its reverse (8680001), we get a palindrome (9680869).

The spelling of 1000868 in words is "one million, eight hundred sixty-eight", and thus it is an aban number.