844986 has 8 divisors (see below), whose sum is σ = 1689984. Its totient is φ = 281660.

The previous prime is 844957. The next prime is 844999. The reversal of 844986 is 689448.

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

844986 is an admirable number.

It is a plaindrome in base 13.

It is an unprimeable 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 3 ways as a sum of consecutive naturals, for example, 70410 + ... + 70421.

It is an arithmetic number, because the mean of its divisors is an integer number (211248).

2⁸⁴⁴⁹⁸⁶ is an apocalyptic number.

844986 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

844986 is a wasteful number, since it uses less digits than its factorization.

844986 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 140836.

The product of its digits is 55296, while the sum is 39.

The square root of 844986 is about 919.2312005149. The cubic root of 844986 is about 94.5401973386.

It can be divided in two parts, 844 and 986, that added together give a triangular number (1830 = T₆₀).

The spelling of 844986 in words is "eight hundred forty-four thousand, nine hundred eighty-six".