979400 has 48 divisors (see below), whose sum is σ = 2343600. Its totient is φ = 380480.

The previous prime is 979379. The next prime is 979403. The reversal of 979400 is 4979.

It is not an unprimeable number, because it can be changed into a prime (979403) by changing a digit.

979400 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 11 ways as a sum of consecutive naturals, for example, 11759 + ... + 11841.

It is an arithmetic number, because the mean of its divisors is an integer number (48825).

2⁹⁷⁹⁴⁰⁰ 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 979400, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1171800).

979400 is an abundant number, since it is smaller than the sum of its proper divisors (1364200).

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

979400 is a wasteful number, since it uses less digits than its factorization.

979400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 158 (or 149 counting only the distinct ones).

The product of its (nonzero) digits is 2268, while the sum is 29.

The square root of 979400 is about 989.6464014990. The cubic root of 979400 is about 99.3085635079.

The spelling of 979400 in words is "nine hundred seventy-nine thousand, four hundred".