678298 has 8 divisors (see below), whose sum is σ = 1022580. Its totient is φ = 337440.

The previous prime is 678289. The next prime is 678299. The reversal of 678298 is 892876.

678298 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 644809 + 33489 = 803^2 + 183^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 678298.

It is not an unprimeable number, because it can be changed into a prime (678299) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 283 + ... + 1198.

2⁶⁷⁸²⁹⁸ is an apocalyptic number.

678298 is a deficient number, since it is larger than the sum of its proper divisors (344282).

678298 is a wasteful number, since it uses less digits than its factorization.

678298 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1712.

The product of its digits is 48384, while the sum is 40.

The square root of 678298 is about 823.5884894776. The cubic root of 678298 is about 87.8631654402.

The spelling of 678298 in words is "six hundred seventy-eight thousand, two hundred ninety-eight".