667678314 has 16 divisors (see below), whose sum is σ = 1336383360. Its totient is φ = 222388320.

The previous prime is 667678309. The next prime is 667678331. The reversal of 667678314 is 413876766.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 34194 + ... + 50045.

It is an arithmetic number, because the mean of its divisors is an integer number (83523960).

Almost surely, 2^667678314 is an apocalyptic number.

667678314 is an abundant number, since it is smaller than the sum of its proper divisors (668705046).

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

667678314 is a wasteful number, since it uses less digits than its factorization.

667678314 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 85565.

The product of its digits is 1016064, while the sum is 48.

The square root of 667678314 is about 25839.4720147297. The cubic root of 667678314 is about 874.0221190862.

The spelling of 667678314 in words is "six hundred sixty-seven million, six hundred seventy-eight thousand, three hundred fourteen".