664063207 has 8 divisors (see below), whose sum is σ = 671220000. Its totient is φ = 656925984.

The previous prime is 664063201. The next prime is 664063217. The reversal of 664063207 is 702360466.

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

It is a cyclic number.

It is not a de Polignac number, because 664063207 - 2¹¹ = 664061159 is a prime.

It is a super-2 number, since 2×664063207² = 881959885782249698, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (664063201) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 69294 + ... + 78292.

It is an arithmetic number, because the mean of its divisors is an integer number (83902500).

Almost surely, 2^664063207 is an apocalyptic number.

664063207 is a deficient number, since it is larger than the sum of its proper divisors (7156793).

664063207 is a wasteful number, since it uses less digits than its factorization.

664063207 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9785.

The product of its (nonzero) digits is 36288, while the sum is 34.

The square root of 664063207 is about 25769.4238779217. The cubic root of 664063207 is about 872.4418154810.

The spelling of 664063207 in words is "six hundred sixty-four million, sixty-three thousand, two hundred seven".