664417295 has 8 divisors (see below), whose sum is σ = 815842896. Its totient is φ = 519172416.

The previous prime is 664417223. The next prime is 664417297. The reversal of 664417295 is 592714466.

664417295 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 a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-664417295 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (664417297) 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, 1544942 + ... + 1545371.

It is an arithmetic number, because the mean of its divisors is an integer number (101980362).

Almost surely, 2^664417295 is an apocalyptic number.

664417295 is a deficient number, since it is larger than the sum of its proper divisors (151425601).

664417295 is a wasteful number, since it uses less digits than its factorization.

664417295 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3090361.

The product of its digits is 362880, while the sum is 44.

The square root of 664417295 is about 25776.2932750231. The cubic root of 664417295 is about 872.5968540795.

The spelling of 664417295 in words is "six hundred sixty-four million, four hundred seventeen thousand, two hundred ninety-five".