660797 has 8 divisors (see below), whose sum is σ = 689472. Its totient is φ = 632800.

The previous prime is 660791. The next prime is 660799. The reversal of 660797 is 797066.

660797 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 660797 - 2⁶ = 660733 is a prime.

It is a super-3 number, since 3×660797³ = 865616333460244719, which contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (660791) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2798 + ... + 3024.

It is an arithmetic number, because the mean of its divisors is an integer number (86184).

2⁶⁶⁰⁷⁹⁷ is an apocalyptic number.

It is an amenable number.

660797 is a deficient number, since it is larger than the sum of its proper divisors (28675).

660797 is a wasteful number, since it uses less digits than its factorization.

660797 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 339.

The product of its (nonzero) digits is 15876, while the sum is 35.

The square root of 660797 is about 812.8942120596. The cubic root of 660797 is about 87.1009090283.

The spelling of 660797 in words is "six hundred sixty thousand, seven hundred ninety-seven".