664835307 has 8 divisors (see below), whose sum is σ = 887138880. Its totient is φ = 442877640.

The previous prime is 664835273. The next prime is 664835317. The reversal of 664835307 is 703538466.

664835307 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 664835307 - 2⁶ = 664835243 is a prime.

It is not an unprimeable number, because it can be changed into a prime (664835317) 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, 81957 + ... + 89702.

It is an arithmetic number, because the mean of its divisors is an integer number (110892360).

Almost surely, 2^664835307 is an apocalyptic number.

664835307 is a deficient number, since it is larger than the sum of its proper divisors (222303573).

664835307 is a wasteful number, since it uses less digits than its factorization.

664835307 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 172953.

The product of its (nonzero) digits is 362880, while the sum is 42.

The square root of 664835307 is about 25784.4004584167. The cubic root of 664835307 is about 872.7798111314.

The spelling of 664835307 in words is "six hundred sixty-four million, eight hundred thirty-five thousand, three hundred seven".