660097 has 2 divisors, whose sum is σ = 660098. Its totient is φ = 660096.

The previous prime is 660073. The next prime is 660103. The reversal of 660097 is 790066.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 641601 + 18496 = 801^2 + 136^2 .

It is a cyclic number.

It is not a de Polignac number, because 660097 - 2¹⁵ = 627329 is a prime.

It is not a weakly prime, because it can be changed into another prime (660047) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 330048 + 330049.

It is an arithmetic number, because the mean of its divisors is an integer number (330049).

2⁶⁶⁰⁰⁹⁷ is an apocalyptic number.

It is an amenable number.

660097 is a deficient number, since it is larger than the sum of its proper divisors (1).

660097 is an equidigital number, since it uses as much as digits as its factorization.

660097 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2268, while the sum is 28.

The square root of 660097 is about 812.4635376434. The cubic root of 660097 is about 87.0701420513.

The spelling of 660097 in words is "six hundred sixty thousand, ninety-seven".