844879 has 8 divisors (see below), whose sum is σ = 973728. Its totient is φ = 718080.

The previous prime is 844867. The next prime is 844891. The reversal of 844879 is 978448.

It is an interprime number because it is at equal distance from previous prime (844867) and next prime (844891).

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 844879 - 2⁵ = 844847 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (844279) 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, 519 + ... + 1399.

It is an arithmetic number, because the mean of its divisors is an integer number (121716).

2⁸⁴⁴⁸⁷⁹ is an apocalyptic number.

844879 is a deficient number, since it is larger than the sum of its proper divisors (128849).

844879 is a wasteful number, since it uses less digits than its factorization.

844879 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1025.

The product of its digits is 64512, while the sum is 40.

The square root of 844879 is about 919.1729978628. The cubic root of 844879 is about 94.5362066499.

The spelling of 844879 in words is "eight hundred forty-four thousand, eight hundred seventy-nine".