668753703 has 6 divisors (see below), whose sum is σ = 965977584. Its totient is φ = 445835796.

The previous prime is 668753699. The next prime is 668753707. The reversal of 668753703 is 307357866.

It is an interprime number because it is at equal distance from previous prime (668753699) and next prime (668753707).

It is not a de Polignac number, because 668753703 - 2² = 668753699 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (668753707) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 37152975 + ... + 37152992.

It is an arithmetic number, because the mean of its divisors is an integer number (160996264).

Almost surely, 2^668753703 is an apocalyptic number.

668753703 is a deficient number, since it is larger than the sum of its proper divisors (297223881).

668753703 is a wasteful number, since it uses less digits than its factorization.

668753703 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 74305973 (or 74305970 counting only the distinct ones).

The product of its (nonzero) digits is 635040, while the sum is 45.

The square root of 668753703 is about 25860.2726783768. The cubic root of 668753703 is about 874.4911122042.

The spelling of 668753703 in words is "six hundred sixty-eight million, seven hundred fifty-three thousand, seven hundred three".