678774314 has 4 divisors (see below), whose sum is σ = 1018161474. Its totient is φ = 339387156.

The previous prime is 678774301. The next prime is 678774359. The reversal of 678774314 is 413477876.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 573363025 + 105411289 = 23945^2 + 10267^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 169693577 + ... + 169693580.

Almost surely, 2^678774314 is an apocalyptic number.

678774314 is a deficient number, since it is larger than the sum of its proper divisors (339387160).

678774314 is a wasteful number, since it uses less digits than its factorization.

678774314 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 339387159.

The product of its digits is 790272, while the sum is 47.

The square root of 678774314 is about 26053.2975647997. The cubic root of 678774314 is about 878.8372703382.

The spelling of 678774314 in words is "six hundred seventy-eight million, seven hundred seventy-four thousand, three hundred fourteen".