668795933 has 8 divisors (see below), whose sum is σ = 720456576. Its totient is φ = 617166000.

The previous prime is 668795927. The next prime is 668795951. The reversal of 668795933 is 339597866.

668795933 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 not a de Polignac number, because 668795933 - 2⁴ = 668795917 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (668795993) 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, 59168 + ... + 69558.

It is an arithmetic number, because the mean of its divisors is an integer number (90057072).

Almost surely, 2^668795933 is an apocalyptic number.

It is an amenable number.

668795933 is a deficient number, since it is larger than the sum of its proper divisors (51660643).

668795933 is a wasteful number, since it uses less digits than its factorization.

668795933 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15355.

The product of its digits is 7348320, while the sum is 56.

The square root of 668795933 is about 25861.0891688653. The cubic root of 668795933 is about 874.5095190717.

The spelling of 668795933 in words is "six hundred sixty-eight million, seven hundred ninety-five thousand, nine hundred thirty-three".