664208714 has 16 divisors (see below), whose sum is σ = 1073399040. Its totient is φ = 306430320.

The previous prime is 664208693. The next prime is 664208723. The reversal of 664208714 is 417802466.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 91967 + ... + 98925.

It is an arithmetic number, because the mean of its divisors is an integer number (67087440).

Almost surely, 2^664208714 is an apocalyptic number.

664208714 is a deficient number, since it is larger than the sum of its proper divisors (409190326).

664208714 is a wasteful number, since it uses less digits than its factorization.

664208714 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10645.

The product of its (nonzero) digits is 64512, while the sum is 38.

The square root of 664208714 is about 25772.2469722762. The cubic root of 664208714 is about 872.5055328697.

The spelling of 664208714 in words is "six hundred sixty-four million, two hundred eight thousand, seven hundred fourteen".