678914 has 8 divisors (see below), whose sum is σ = 1062720. Its totient is φ = 324676.

The previous prime is 678907. The next prime is 678941. The reversal of 678914 is 419876.

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7334 + ... + 7425.

It is an arithmetic number, because the mean of its divisors is an integer number (132840).

2⁶⁷⁸⁹¹⁴ is an apocalyptic number.

678914 is a deficient number, since it is larger than the sum of its proper divisors (383806).

678914 is a wasteful number, since it uses less digits than its factorization.

678914 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14784.

The product of its digits is 12096, while the sum is 35.

The square root of 678914 is about 823.9623777819. The cubic root of 678914 is about 87.8897551957.

The spelling of 678914 in words is "six hundred seventy-eight thousand, nine hundred fourteen".