678393314 has 8 divisors (see below), whose sum is σ = 1020800988. Its totient is φ = 338126320.

The previous prime is 678393311. The next prime is 678393323. The reversal of 678393314 is 413393876.

It can be written as a sum of positive squares in 2 ways, for example, as 587820025 + 90573289 = 24245^2 + 9517^2 .

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

It is not an unprimeable number, because it can be changed into a prime (678393311) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 534377 + ... + 535644.

Almost surely, 2^678393314 is an apocalyptic number.

678393314 is a deficient number, since it is larger than the sum of its proper divisors (342407674).

678393314 is a wasteful number, since it uses less digits than its factorization.

678393314 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1070340.

The product of its digits is 326592, while the sum is 44.

The square root of 678393314 is about 26045.9846041573. The cubic root of 678393314 is about 878.6728073931.

The spelling of 678393314 in words is "six hundred seventy-eight million, three hundred ninety-three thousand, three hundred fourteen".