666982714 has 4 divisors (see below), whose sum is σ = 1000474074. Its totient is φ = 333491356.

The previous prime is 666982699. The next prime is 666982721. The reversal of 666982714 is 417289666.

666982714 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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., 649485225 + 17497489 = 25485^2 + 4183^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 166745677 + ... + 166745680.

Almost surely, 2^666982714 is an apocalyptic number.

666982714 is a deficient number, since it is larger than the sum of its proper divisors (333491360).

666982714 is a wasteful number, since it uses less digits than its factorization.

666982714 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 333491359.

The product of its digits is 870912, while the sum is 49.

The square root of 666982714 is about 25826.0084798251. The cubic root of 666982714 is about 873.7184893156.

The spelling of 666982714 in words is "six hundred sixty-six million, nine hundred eighty-two thousand, seven hundred fourteen".