678700 has 36 divisors (see below), whose sum is σ = 1609272. Its totient is φ = 246400.

The previous prime is 678659. The next prime is 678719. The reversal of 678700 is 7876.

678700 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 792 + ... + 1408.

It is an arithmetic number, because the mean of its divisors is an integer number (44702).

2⁶⁷⁸⁷⁰⁰ is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 678700, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (804636).

678700 is an abundant number, since it is smaller than the sum of its proper divisors (930572).

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

678700 is a wasteful number, since it uses less digits than its factorization.

678700 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 642 (or 635 counting only the distinct ones).

The product of its (nonzero) digits is 2352, while the sum is 28.

The square root of 678700 is about 823.8325072489. The cubic root of 678700 is about 87.8805196694.

It can be divided in two parts, 678 and 700, that added together give a triangular number (1378 = T₅₂).

The spelling of 678700 in words is "six hundred seventy-eight thousand, seven hundred".