978873 has 12 divisors (see below), whose sum is σ = 1518480. Its totient is φ = 559272.

The previous prime is 978871. The next prime is 978883. The reversal of 978873 is 378879.

It is not a de Polignac number, because 978873 - 2¹ = 978871 is a prime.

978873 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (978871) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3183 + ... + 3476.

It is an arithmetic number, because the mean of its divisors is an integer number (126540).

2⁹⁷⁸⁸⁷³ is an apocalyptic number.

It is an amenable number.

978873 is a deficient number, since it is larger than the sum of its proper divisors (539607).

978873 is a wasteful number, since it uses less digits than its factorization.

978873 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6676 (or 6669 counting only the distinct ones).

The product of its digits is 84672, while the sum is 42.

The square root of 978873 is about 989.3801089571. The cubic root of 978873 is about 99.2907481779.

The spelling of 978873 in words is "nine hundred seventy-eight thousand, eight hundred seventy-three".