988678 has 8 divisors (see below), whose sum is σ = 1547568. Its totient is φ = 472824.

The previous prime is 988661. The next prime is 988681. The reversal of 988678 is 876889.

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

It is a Harshad number since it is a multiple of its sum of digits (46), and also a Moran number because the ratio is a prime number: 21493 = 988678 / (9 + 8 + 8 + 6 + 7 + 8).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10701 + ... + 10792.

It is an arithmetic number, because the mean of its divisors is an integer number (193446).

2⁹⁸⁸⁶⁷⁸ is an apocalyptic number.

988678 is a deficient number, since it is larger than the sum of its proper divisors (558890).

988678 is a wasteful number, since it uses less digits than its factorization.

988678 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21518.

The product of its digits is 193536, while the sum is 46.

The square root of 988678 is about 994.3228851837. The cubic root of 988678 is about 99.6211666653.

The spelling of 988678 in words is "nine hundred eighty-eight thousand, six hundred seventy-eight".