668097 has 12 divisors (see below), whose sum is σ = 1016080. Its totient is φ = 421848.

The previous prime is 668093. The next prime is 668111. The reversal of 668097 is 790866.

It is not a de Polignac number, because 668097 - 2² = 668093 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 668097.

It is not an unprimeable number, because it can be changed into a prime (668093) 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, 1783 + ... + 2124.

2⁶⁶⁸⁰⁹⁷ is an apocalyptic number.

It is an amenable number.

668097 is a deficient number, since it is larger than the sum of its proper divisors (347983).

668097 is a wasteful number, since it uses less digits than its factorization.

668097 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3932 (or 3929 counting only the distinct ones).

The product of its (nonzero) digits is 18144, while the sum is 36.

The square root of 668097 is about 817.3720083291. The cubic root of 668097 is about 87.4204774093.

The spelling of 668097 in words is "six hundred sixty-eight thousand, ninety-seven".