668832307 has 16 divisors (see below), whose sum is σ = 812861280. Its totient is φ = 541900800.

The previous prime is 668832301. The next prime is 668832317. The reversal of 668832307 is 703238866.

It is a cyclic number.

It is not a de Polignac number, because 668832307 - 2¹¹ = 668830259 is a prime.

It is not an unprimeable number, because it can be changed into a prime (668832301) 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 15 ways as a sum of consecutive naturals, for example, 76494 + ... + 84787.

It is an arithmetic number, because the mean of its divisors is an integer number (50803830).

Almost surely, 2^668832307 is an apocalyptic number.

668832307 is a deficient number, since it is larger than the sum of its proper divisors (144028973).

668832307 is a wasteful number, since it uses less digits than its factorization.

668832307 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 161334.

The product of its (nonzero) digits is 290304, while the sum is 43.

The square root of 668832307 is about 25861.7924166134. The cubic root of 668832307 is about 874.5253728526.

The spelling of 668832307 in words is "six hundred sixty-eight million, eight hundred thirty-two thousand, three hundred seven".