668053703 has 2 divisors, whose sum is σ = 668053704. Its totient is φ = 668053702.

The previous prime is 668053691. The next prime is 668053787. The reversal of 668053703 is 307350866.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-668053703 is a prime.

It is equal to p_34682582 and since 668053703 and 34682582 have the same sum of digits, it is a Honaker prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (668023703) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 334026851 + 334026852.

It is an arithmetic number, because the mean of its divisors is an integer number (334026852).

Almost surely, 2^668053703 is an apocalyptic number.

668053703 is a deficient number, since it is larger than the sum of its proper divisors (1).

668053703 is an equidigital number, since it uses as much as digits as its factorization.

668053703 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 90720, while the sum is 38.

The square root of 668053703 is about 25846.7348614869. The cubic root of 668053703 is about 874.1858889799.

The spelling of 668053703 in words is "six hundred sixty-eight million, fifty-three thousand, seven hundred three".