667710714 has 32 divisors (see below), whose sum is σ = 1460514240. Its totient is φ = 201824000.

The previous prime is 667710661. The next prime is 667710721. The reversal of 667710714 is 417017766.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13852 + ... + 39080.

It is an arithmetic number, because the mean of its divisors is an integer number (45641070).

Almost surely, 2^667710714 is an apocalyptic number.

667710714 is an abundant number, since it is smaller than the sum of its proper divisors (792803526).

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

667710714 is a wasteful number, since it uses less digits than its factorization.

667710714 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25646.

The product of its (nonzero) digits is 49392, while the sum is 39.

The square root of 667710714 is about 25840.0989549189. The cubic root of 667710714 is about 874.0362565622.

It can be divided in two parts, 6677 and 10714, that added together give a triangular number (17391 = T₁₈₆).

The spelling of 667710714 in words is "six hundred sixty-seven million, seven hundred ten thousand, seven hundred fourteen".