660002 has 8 divisors (see below), whose sum is σ = 1131456. Its totient is φ = 282852.

The previous prime is 660001. The next prime is 660013. The reversal of 660002 is 200066.

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

It is a Harshad number since it is a multiple of its sum of digits (14), and also a Moran number because the ratio is a prime number: 47143 = 660002 / (6 + 6 + 0 + 0 + 0 + 2).

It is an Ulam number.

It is not an unprimeable number, because it can be changed into a prime (660001) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 23558 + ... + 23585.

It is an arithmetic number, because the mean of its divisors is an integer number (141432).

2⁶⁶⁰⁰⁰² is an apocalyptic number.

660002 is a deficient number, since it is larger than the sum of its proper divisors (471454).

660002 is a wasteful number, since it uses less digits than its factorization.

660002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47152.

The product of its (nonzero) digits is 72, while the sum is 14.

The square root of 660002 is about 812.4050713776. The cubic root of 660002 is about 87.0659648570.

Adding to 660002 its reverse (200066), we get a palindrome (860068).

The spelling of 660002 in words is "six hundred sixty thousand, two".