979944 has 64 divisors (see below), whose sum is σ = 2956800. Its totient is φ = 264384.

The previous prime is 979921. The next prime is 979949. The reversal of 979944 is 449979.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a junction number, because it is equal to n+sod(n) for n = 979896 and 979905.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 979944.

It is not an unprimeable number, because it can be changed into a prime (979949) by changing a digit.

979944 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 (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3039 + ... + 3345.

It is an arithmetic number, because the mean of its divisors is an integer number (46200).

2⁹⁷⁹⁹⁴⁴ is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 979944, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1478400).

979944 is an abundant number, since it is smaller than the sum of its proper divisors (1976856).

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

979944 is a wasteful number, since it uses less digits than its factorization.

979944 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 342 (or 338 counting only the distinct ones).

The product of its digits is 81648, while the sum is 42.

The square root of 979944 is about 989.9212089858. The cubic root of 979944 is about 99.3269468240.

979944 divided by its sum of digits (42) gives a palindrome (23332).

The spelling of 979944 in words is "nine hundred seventy-nine thousand, nine hundred forty-four".