666027 has 12 divisors (see below), whose sum is σ = 984984. Its totient is φ = 433440.

The previous prime is 666023. The next prime is 666031. The reversal of 666027 is 720666.

666027 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (666023) and next prime (666031).

It is not a de Polignac number, because 666027 - 2² = 666023 is a prime.

666027 is a lucky number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 666027.

It is not an unprimeable number, because it can be changed into a prime (666023) 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, 474 + ... + 1247.

It is an arithmetic number, because the mean of its divisors is an integer number (82082).

2⁶⁶⁶⁰²⁷ is an apocalyptic number.

666027 is a deficient number, since it is larger than the sum of its proper divisors (318957).

666027 is a wasteful number, since it uses less digits than its factorization.

666027 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1770 (or 1767 counting only the distinct ones).

The product of its (nonzero) digits is 3024, while the sum is 27.

The square root of 666027 is about 816.1047726855. The cubic root of 666027 is about 87.3300975175.

The spelling of 666027 in words is "six hundred sixty-six thousand, twenty-seven".