660710 has 8 divisors (see below), whose sum is σ = 1189296. Its totient is φ = 264280.

The previous prime is 660683. The next prime is 660719. The reversal of 660710 is 17066.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (660719) by changing a digit.

660710 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 33026 + ... + 33045.

It is an arithmetic number, because the mean of its divisors is an integer number (148662).

2⁶⁶⁰⁷¹⁰ is an apocalyptic number.

660710 is a deficient number, since it is larger than the sum of its proper divisors (528586).

660710 is a wasteful number, since it uses less digits than its factorization.

660710 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 66078.

The product of its (nonzero) digits is 252, while the sum is 20.

The square root of 660710 is about 812.8406978000. The cubic root of 660710 is about 87.0970863154.

Adding to 660710 its reverse (17066), we get a palindrome (677776).

The spelling of 660710 in words is "six hundred sixty thousand, seven hundred ten".