669010 has 16 divisors (see below), whose sum is σ = 1215000. Its totient is φ = 265216.

The previous prime is 668999. The next prime is 669023. The reversal of 669010 is 10966.

It can be written as a sum of positive squares in 4 ways, for example, as 439569 + 229441 = 663^2 + 479^2 .

It is an unprimeable number.

669010 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 7 ways as a sum of consecutive naturals, for example, 1266 + ... + 1714.

2⁶⁶⁹⁰¹⁰ is an apocalyptic number.

669010 is a deficient number, since it is larger than the sum of its proper divisors (545990).

669010 is a wasteful number, since it uses less digits than its factorization.

669010 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 605.

The product of its (nonzero) digits is 324, while the sum is 22.

The square root of 669010 is about 817.9303148802. The cubic root of 669010 is about 87.4602812930.

Adding to 669010 its reverse (10966), we get a palindrome (679976).

The spelling of 669010 in words is "six hundred sixty-nine thousand, ten".