978582 has 16 divisors (see below), whose sum is σ = 2135232. Its totient is φ = 296520.

The previous prime is 978569. The next prime is 978599. The reversal of 978582 is 285879.

It is a nialpdrome in base 16.

It is a self number, because there is not a number n which added to its sum of digits gives 978582.

It is a congruent number.

It is an unprimeable number.

978582 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 (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7348 + ... + 7479.

It is an arithmetic number, because the mean of its divisors is an integer number (133452).

2⁹⁷⁸⁵⁸² is an apocalyptic number.

978582 is an abundant number, since it is smaller than the sum of its proper divisors (1156650).

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

978582 is a wasteful number, since it uses less digits than its factorization.

978582 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14843.

The product of its digits is 40320, while the sum is 39.

The square root of 978582 is about 989.2330362458. The cubic root of 978582 is about 99.2809081301.

The spelling of 978582 in words is "nine hundred seventy-eight thousand, five hundred eighty-two".