678948 has 24 divisors (see below), whose sum is σ = 1639680. Its totient is φ = 218400.

The previous prime is 678943. The next prime is 678949. The reversal of 678948 is 849876.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (678941) by changing a digit.

678948 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 628 + ... + 1323.

It is an arithmetic number, because the mean of its divisors is an integer number (68320).

2⁶⁷⁸⁹⁴⁸ is an apocalyptic number.

It is an amenable number.

678948 is an abundant number, since it is smaller than the sum of its proper divisors (960732).

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

678948 is a wasteful number, since it uses less digits than its factorization.

678948 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1987 (or 1985 counting only the distinct ones).

The product of its digits is 96768, while the sum is 42.

The square root of 678948 is about 823.9830095336. The cubic root of 678948 is about 87.8912223436.

The spelling of 678948 in words is "six hundred seventy-eight thousand, nine hundred forty-eight".