668703 has 12 divisors (see below), whose sum is σ = 1037400. Its totient is φ = 382032.

The previous prime is 668699. The next prime is 668713. The reversal of 668703 is 307866.

668703 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 668703 - 2² = 668699 is a prime.

It is an Ulam number.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 668703.

It is not an unprimeable number, because it can be changed into a prime (668713) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2128 + ... + 2421.

It is an arithmetic number, because the mean of its divisors is an integer number (86450).

2⁶⁶⁸⁷⁰³ is an apocalyptic number.

668703 is a deficient number, since it is larger than the sum of its proper divisors (368697).

668703 is a wasteful number, since it uses less digits than its factorization.

668703 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4566 (or 4559 counting only the distinct ones).

The product of its (nonzero) digits is 6048, while the sum is 30.

The square root of 668703 is about 817.7426245464. The cubic root of 668703 is about 87.4469011171.

The spelling of 668703 in words is "six hundred sixty-eight thousand, seven hundred three".