872868 has 12 divisors (see below), whose sum is σ = 2036720. Its totient is φ = 290952.

The previous prime is 872863. The next prime is 872923. The reversal of 872868 is 868278.

It is a tau number, because it is divible by the number of its divisors (12).

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 872868.

It is not an unprimeable number, because it can be changed into a prime (872863) by changing a digit.

872868 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 36358 + ... + 36381.

2⁸⁷²⁸⁶⁸ is an apocalyptic number.

It is an amenable number.

872868 is an abundant number, since it is smaller than the sum of its proper divisors (1163852).

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

872868 is a wasteful number, since it uses less digits than its factorization.

872868 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72746 (or 72744 counting only the distinct ones).

The product of its digits is 43008, while the sum is 39.

The square root of 872868 is about 934.2740497306. The cubic root of 872868 is about 95.5688127351.

The spelling of 872868 in words is "eight hundred seventy-two thousand, eight hundred sixty-eight".