868845 has 8 divisors (see below), whose sum is σ = 1390176. Its totient is φ = 463376.

The previous prime is 868841. The next prime is 868849. The reversal of 868845 is 548868.

It is an interprime number because it is at equal distance from previous prime (868841) and next prime (868849).

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 868845 - 2² = 868841 is a prime.

It is a Curzon number.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 868845.

It is not an unprimeable number, because it can be changed into a prime (868841) 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, 28947 + ... + 28976.

It is an arithmetic number, because the mean of its divisors is an integer number (173772).

2⁸⁶⁸⁸⁴⁵ is an apocalyptic number.

It is an amenable number.

868845 is a deficient number, since it is larger than the sum of its proper divisors (521331).

868845 is a wasteful number, since it uses less digits than its factorization.

868845 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57931.

The product of its digits is 61440, while the sum is 39.

The square root of 868845 is about 932.1185546914. The cubic root of 868845 is about 95.4217628097.

The spelling of 868845 in words is "eight hundred sixty-eight thousand, eight hundred forty-five".