678336 has 28 divisors (see below), whose sum is σ = 1795272. Its totient is φ = 226048.

The previous prime is 678329. The next prime is 678341. The reversal of 678336 is 633876.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 678297 and 678306.

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, 1575 + ... + 1958.

2⁶⁷⁸³³⁶ is an apocalyptic number.

It is an amenable number.

678336 is an abundant number, since it is smaller than the sum of its proper divisors (1116936).

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

678336 is a wasteful number, since it uses less digits than its factorization.

678336 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3548 (or 3538 counting only the distinct ones).

The product of its digits is 18144, while the sum is 33.

The square root of 678336 is about 823.6115589281. The cubic root of 678336 is about 87.8648061831.

The spelling of 678336 in words is "six hundred seventy-eight thousand, three hundred thirty-six".