678276 has 36 divisors (see below), whose sum is σ = 1742832. Its totient is φ = 222384.

The previous prime is 678253. The next prime is 678289. The reversal of 678276 is 672876.

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 678276.

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, 2875 + ... + 3101.

It is an arithmetic number, because the mean of its divisors is an integer number (48412).

2⁶⁷⁸²⁷⁶ 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 678276, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (871416).

678276 is an abundant number, since it is smaller than the sum of its proper divisors (1064556).

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

678276 is a wasteful number, since it uses less digits than its factorization.

678276 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 320 (or 315 counting only the distinct ones).

The product of its digits is 28224, while the sum is 36.

The square root of 678276 is about 823.5751331846. The cubic root of 678276 is about 87.8622155084.

The spelling of 678276 in words is "six hundred seventy-eight thousand, two hundred seventy-six".