660027 has 4 divisors (see below), whose sum is σ = 880040. Its totient is φ = 440016.

The previous prime is 660013. The next prime is 660029. The reversal of 660027 is 720066.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 660027 - 2⁶ = 659963 is a prime.

It is a D-number.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 659985 and 660012.

It is not an unprimeable number, because it can be changed into a prime (660029) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 110002 + ... + 110007.

It is an arithmetic number, because the mean of its divisors is an integer number (220010).

2⁶⁶⁰⁰²⁷ is an apocalyptic number.

660027 is a deficient number, since it is larger than the sum of its proper divisors (220013).

660027 is a wasteful number, since it uses less digits than its factorization.

660027 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 220012.

The product of its (nonzero) digits is 504, while the sum is 21.

The square root of 660027 is about 812.4204576449. The cubic root of 660027 is about 87.0670641575.

The spelling of 660027 in words is "six hundred sixty thousand, twenty-seven".