806668 has 6 divisors (see below), whose sum is σ = 1411676. Its totient is φ = 403332.

The previous prime is 806657. The next prime is 806671. The reversal of 806668 is 866608.

It is a happy number.

It is an unprimeable number.

806668 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 100830 + ... + 100837.

2⁸⁰⁶⁶⁶⁸ is an apocalyptic number.

It is an amenable number.

806668 is a deficient number, since it is larger than the sum of its proper divisors (605008).

806668 is a wasteful number, since it uses less digits than its factorization.

806668 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 201671 (or 201669 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 34.

The square root of 806668 is about 898.1469812898. The cubic root of 806668 is about 93.0889810105.

The spelling of 806668 in words is "eight hundred six thousand, six hundred sixty-eight".