664632314 has 8 divisors (see below), whose sum is σ = 997338420. Its totient is φ = 332186176.

The previous prime is 664632313. The next prime is 664632317. The reversal of 664632314 is 413236466.

It can be written as a sum of positive squares in 2 ways, for example, as 649383289 + 15249025 = 25483^2 + 3905^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×664632314² = 883472225625989192, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (664632313) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 58469 + ... + 68904.

Almost surely, 2^664632314 is an apocalyptic number.

664632314 is a deficient number, since it is larger than the sum of its proper divisors (332706106).

664632314 is a wasteful number, since it uses less digits than its factorization.

664632314 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 129984.

The product of its digits is 62208, while the sum is 35.

The square root of 664632314 is about 25780.4638049823. The cubic root of 664632314 is about 872.6909739789.

The spelling of 664632314 in words is "six hundred sixty-four million, six hundred thirty-two thousand, three hundred fourteen".