979128 has 40 divisors (see below), whose sum is σ = 2744280. Its totient is φ = 326160.

The previous prime is 979117. The next prime is 979159. The reversal of 979128 is 821979.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 979092 and 979101.

It is a congruent number.

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 9 ways as a sum of consecutive naturals, for example, 108 + ... + 1403.

It is an arithmetic number, because the mean of its divisors is an integer number (68607).

2⁹⁷⁹¹²⁸ 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 979128, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1372140).

979128 is an abundant number, since it is smaller than the sum of its proper divisors (1765152).

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

979128 is a wasteful number, since it uses less digits than its factorization.

979128 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1529 (or 1516 counting only the distinct ones).

The product of its digits is 9072, while the sum is 36.

The square root of 979128 is about 989.5089691357. The cubic root of 979128 is about 99.2993692971.

The spelling of 979128 in words is "nine hundred seventy-nine thousand, one hundred twenty-eight".