664935395 has 8 divisors (see below), whose sum is σ = 801102960. Its totient is φ = 529828000.

The previous prime is 664935389. The next prime is 664935407. The reversal of 664935395 is 593539466.

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

It is not a de Polignac number, because 664935395 - 2¹⁰ = 664934371 is a prime.

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, 263660 + ... + 266169.

It is an arithmetic number, because the mean of its divisors is an integer number (100137870).

Almost surely, 2^664935395 is an apocalyptic number.

664935395 is a deficient number, since it is larger than the sum of its proper divisors (136167565).

664935395 is a wasteful number, since it uses less digits than its factorization.

664935395 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 530085.

The product of its digits is 2624400, while the sum is 50.

The square root of 664935395 is about 25786.3412488084. The cubic root of 664935395 is about 872.8236066407.

The spelling of 664935395 in words is "six hundred sixty-four million, nine hundred thirty-five thousand, three hundred ninety-five".