978126 has 8 divisors (see below), whose sum is σ = 1956264. Its totient is φ = 326040.

The previous prime is 978113. The next prime is 978149. The reversal of 978126 is 621879.

978126 = 493² + 494² + ... + 496².

It is a sphenic number, since it is the product of 3 distinct primes.

978126 is an admirable number.

It is a congruent number.

It is an unprimeable 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 3 ways as a sum of consecutive naturals, for example, 81505 + ... + 81516.

It is an arithmetic number, because the mean of its divisors is an integer number (244533).

2⁹⁷⁸¹²⁶ is an apocalyptic number.

978126 is the 626-th centered pentagonal number.

978126 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

978126 is a wasteful number, since it uses less digits than its factorization.

978126 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 163026.

The product of its digits is 6048, while the sum is 33.

The square root of 978126 is about 989.0025278026. The cubic root of 978126 is about 99.2654847495.

The spelling of 978126 in words is "nine hundred seventy-eight thousand, one hundred twenty-six".