678096 has 60 divisors (see below), whose sum is σ = 2016612. Its totient is φ = 211968.

The previous prime is 678077. The next prime is 678101. The reversal of 678096 is 690876.

It can be written as a sum of positive squares in 2 ways, for example, as 318096 + 360000 = 564^2 + 600^2 .

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

It is an Ulam number.

It is a self number, because there is not a number n which added to its sum of digits gives 678096.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 678096.

It is an unprimeable number.

678096 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 11 ways as a sum of consecutive naturals, for example, 2310 + ... + 2586.

2⁶⁷⁸⁰⁹⁶ 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 678096, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1008306).

678096 is an abundant number, since it is smaller than the sum of its proper divisors (1338516).

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

678096 is a wasteful number, since it uses less digits than its factorization.

678096 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 308 (or 299 counting only the distinct ones).

The product of its (nonzero) digits is 18144, while the sum is 36.

The square root of 678096 is about 823.4658462863. The cubic root of 678096 is about 87.8544425674.

The spelling of 678096 in words is "six hundred seventy-eight thousand, ninety-six".