979668 has 48 divisors (see below), whose sum is σ = 2607360. Its totient is φ = 317952.

The previous prime is 979651. The next prime is 979691. The reversal of 979668 is 866979.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4980 + ... + 5172.

It is an arithmetic number, because the mean of its divisors is an integer number (54320).

2⁹⁷⁹⁶⁶⁸ 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 979668, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1303680).

979668 is an abundant number, since it is smaller than the sum of its proper divisors (1627692).

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

979668 is a wasteful number, since it uses less digits than its factorization.

979668 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 253 (or 245 counting only the distinct ones).

The product of its digits is 163296, while the sum is 45.

The square root of 979668 is about 989.7817941344. The cubic root of 979668 is about 99.3176208450.

The spelling of 979668 in words is "nine hundred seventy-nine thousand, six hundred sixty-eight".