868854 has 32 divisors (see below), whose sum is σ = 2013696. Its totient is φ = 244800.

The previous prime is 868849. The next prime is 868867. The reversal of 868854 is 458868.

It is a plaindrome in base 15.

It is a congruent number.

It is an unprimeable number.

868854 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

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 15 ways as a sum of consecutive naturals, for example, 5679 + ... + 5829.

It is an arithmetic number, because the mean of its divisors is an integer number (62928).

2⁸⁶⁸⁸⁵⁴ is an apocalyptic number.

868854 is an abundant number, since it is smaller than the sum of its proper divisors (1144842).

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

868854 is a wasteful number, since it uses less digits than its factorization.

868854 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 300.

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

The square root of 868854 is about 932.1233823910. The cubic root of 868854 is about 95.4220922865.

The spelling of 868854 in words is "eight hundred sixty-eight thousand, eight hundred fifty-four".