678248 has 16 divisors (see below), whose sum is σ = 1282500. Its totient is φ = 336256.

The previous prime is 678229. The next prime is 678253. The reversal of 678248 is 842876.

It can be written as a sum of positive squares in 2 ways, for example, as 574564 + 103684 = 758^2 + 322^2 .

It is an unprimeable number.

678248 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 3 ways as a sum of consecutive naturals, for example, 908 + ... + 1476.

2⁶⁷⁸²⁴⁸ is an apocalyptic number.

It is an amenable number.

678248 is a deficient number, since it is larger than the sum of its proper divisors (604252).

678248 is a wasteful number, since it uses less digits than its factorization.

678248 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 724 (or 720 counting only the distinct ones).

The product of its digits is 21504, while the sum is 35.

The square root of 678248 is about 823.5581339529. The cubic root of 678248 is about 87.8610064745.

The spelling of 678248 in words is "six hundred seventy-eight thousand, two hundred forty-eight".