668303 has 2 divisors, whose sum is σ = 668304. Its totient is φ = 668302.

The previous prime is 668273. The next prime is 668347. The reversal of 668303 is 303866.

668303 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 668303 - 2⁸ = 668047 is a prime.

It is a plaindrome in base 14.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (668203) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 334151 + 334152.

It is an arithmetic number, because the mean of its divisors is an integer number (334152).

2⁶⁶⁸³⁰³ is an apocalyptic number.

668303 is a deficient number, since it is larger than the sum of its proper divisors (1).

668303 is an equidigital number, since it uses as much as digits as its factorization.

668303 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2592, while the sum is 26.

The square root of 668303 is about 817.4980122300. The cubic root of 668303 is about 87.4294615177.

The spelling of 668303 in words is "six hundred sixty-eight thousand, three hundred three".