664986314 has 16 divisors (see below), whose sum is σ = 1080718848. Its totient is φ = 305656512.

The previous prime is 664986307. The next prime is 664986319. The reversal of 664986314 is 413689466.

664986314 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (664986319) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 225962 + ... + 228885.

It is an arithmetic number, because the mean of its divisors is an integer number (67544928).

Almost surely, 2^664986314 is an apocalyptic number.

664986314 is a deficient number, since it is larger than the sum of its proper divisors (415732534).

664986314 is a wasteful number, since it uses less digits than its factorization.

664986314 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 454909.

The product of its digits is 746496, while the sum is 47.

The square root of 664986314 is about 25787.3285549318. The cubic root of 664986314 is about 872.8458855824.

The spelling of 664986314 in words is "six hundred sixty-four million, nine hundred eighty-six thousand, three hundred fourteen".