678244 has 12 divisors (see below), whose sum is σ = 1356544. Its totient is φ = 290664.

The previous prime is 678229. The next prime is 678253. The reversal of 678244 is 442876.

678244 is an admirable 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, 12084 + ... + 12139.

2⁶⁷⁸²⁴⁴ is an apocalyptic number.

It is an amenable number.

678244 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.

678244 is a wasteful number, since it uses less digits than its factorization.

678244 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24234 (or 24232 counting only the distinct ones).

The product of its digits is 10752, while the sum is 31.

The square root of 678244 is about 823.5557054626. Note that the first 3 decimals coincide. The cubic root of 678244 is about 87.8608337527.

The spelling of 678244 in words is "six hundred seventy-eight thousand, two hundred forty-four".