978579 has 24 divisors (see below), whose sum is σ = 1653600. Its totient is φ = 557424.

The previous prime is 978569. The next prime is 978599. The reversal of 978579 is 975879.

978579 is a `hidden beast` number, since 9 + 78 + 579 = 666.

It is not a de Polignac number, because 978579 - 2⁸ = 978323 is a prime.

It is a nialpdrome in base 16.

It is not an unprimeable number, because it can be changed into a prime (978569) by changing a digit.

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 23 ways as a sum of consecutive naturals, for example, 2929 + ... + 3245.

It is an arithmetic number, because the mean of its divisors is an integer number (68900).

2⁹⁷⁸⁵⁷⁹ is an apocalyptic number.

978579 is a deficient number, since it is larger than the sum of its proper divisors (675021).

978579 is a wasteful number, since it uses less digits than its factorization.

978579 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 344 (or 327 counting only the distinct ones).

The product of its digits is 158760, while the sum is 45.

The square root of 978579 is about 989.2315199184. The cubic root of 978579 is about 99.2808066761.

The spelling of 978579 in words is "nine hundred seventy-eight thousand, five hundred seventy-nine".