666795 has 8 divisors (see below), whose sum is σ = 1066896. Its totient is φ = 355616.

The previous prime is 666773. The next prime is 666811. The reversal of 666795 is 597666.

It is a happy number.

666795 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 666795 - 2⁷ = 666667 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 22212 + ... + 22241.

It is an arithmetic number, because the mean of its divisors is an integer number (133362).

2⁶⁶⁶⁷⁹⁵ is an apocalyptic number.

666795 is a deficient number, since it is larger than the sum of its proper divisors (400101).

666795 is a wasteful number, since it uses less digits than its factorization.

666795 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44461.

The product of its digits is 68040, while the sum is 39.

The square root of 666795 is about 816.5751649420. The cubic root of 666795 is about 87.3636515886.

The spelling of 666795 in words is "six hundred sixty-six thousand, seven hundred ninety-five".