665002 has 8 divisors (see below), whose sum is σ = 1074276. Its totient is φ = 306912.

The previous prime is 664997. The next prime is 665011. The reversal of 665002 is 200566.

It can be written as a sum of positive squares in 2 ways, for example, as 519841 + 145161 = 721^2 + 381^2 .

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

It is an unprimeable number.

665002 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, 12763 + ... + 12814.

2⁶⁶⁵⁰⁰² is an apocalyptic number.

665002 is a deficient number, since it is larger than the sum of its proper divisors (409274).

665002 is a wasteful number, since it uses less digits than its factorization.

665002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25592.

The product of its (nonzero) digits is 360, while the sum is 19.

The square root of 665002 is about 815.4765477928. The cubic root of 665002 is about 87.2852748557.

Adding to 665002 its reverse (200566), we get a palindrome (865568).

The spelling of 665002 in words is "six hundred sixty-five thousand, two".