663002 has 4 divisors (see below), whose sum is σ = 994506. Its totient is φ = 331500.

The previous prime is 663001. The next prime is 663007. The reversal of 663002 is 200366.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 200366 = 2 ⋅100183.

It can be written as a sum of positive squares in only one way, i.e., 383161 + 279841 = 619^2 + 529^2 .

It is not an unprimeable number, because it can be changed into a prime (663001) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 165749 + ... + 165752.

2⁶⁶³⁰⁰² is an apocalyptic number.

663002 is a deficient number, since it is larger than the sum of its proper divisors (331504).

663002 is a wasteful number, since it uses less digits than its factorization.

663002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 331503.

The product of its (nonzero) digits is 216, while the sum is 17.

The square root of 663002 is about 814.2493475588. The cubic root of 663002 is about 87.1976832143.

Adding to 663002 its reverse (200366), we get a palindrome (863368).

The spelling of 663002 in words is "six hundred sixty-three thousand, two".