979660 has 48 divisors (see below), whose sum is σ = 2312352. Its totient is φ = 345600.

The previous prime is 979651. The next prime is 979691. The reversal of 979660 is 66979.

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, 13384 + ... + 13456.

It is an arithmetic number, because the mean of its divisors is an integer number (48174).

2⁹⁷⁹⁶⁶⁰ 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 979660, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1156176).

979660 is an abundant number, since it is smaller than the sum of its proper divisors (1332692).

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

979660 is a wasteful number, since it uses less digits than its factorization.

979660 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 154 (or 152 counting only the distinct ones).

The product of its (nonzero) digits is 20412, while the sum is 37.

The square root of 979660 is about 989.7777528314. Note that the first 4 decimals coincide. The cubic root of 979660 is about 99.3173505007.

The spelling of 979660 in words is "nine hundred seventy-nine thousand, six hundred sixty".