660727 has 2 divisors, whose sum is σ = 660728. Its totient is φ = 660726.

The previous prime is 660719. The next prime is 660731. The reversal of 660727 is 727066.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 660727 - 2³ = 660719 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 660695 and 660704.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (660757) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 330363 + 330364.

It is an arithmetic number, because the mean of its divisors is an integer number (330364).

2⁶⁶⁰⁷²⁷ is an apocalyptic number.

660727 is a deficient number, since it is larger than the sum of its proper divisors (1).

660727 is an equidigital number, since it uses as much as digits as its factorization.

660727 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3528, while the sum is 28.

The square root of 660727 is about 812.8511548863. The cubic root of 660727 is about 87.0978333087.

The spelling of 660727 in words is "six hundred sixty thousand, seven hundred twenty-seven".