669000219 has 16 divisors (see below), whose sum is σ = 916860960. Its totient is φ = 433589760.

The previous prime is 669000193. The next prime is 669000221. The reversal of 669000219 is 912000966.

It is a happy number.

It is not a de Polignac number, because 669000219 - 2⁷ = 669000091 is a prime.

It is a super-4 number, since 4×669000219⁴ (a number of 36 digits) contains 4444 as substring. Note that it is a super-d number also for d = 2.

It is a self number, because there is not a number n which added to its sum of digits gives 669000219.

It is not an unprimeable number, because it can be changed into a prime (669000289) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 238477 + ... + 241265.

It is an arithmetic number, because the mean of its divisors is an integer number (57303810).

Almost surely, 2^669000219 is an apocalyptic number.

669000219 is a deficient number, since it is larger than the sum of its proper divisors (247860741).

669000219 is a wasteful number, since it uses less digits than its factorization.

With its successor (669000220) it forms a Ruth-Aaron pair, since the sum of their prime factors is the same (4990).

669000219 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4990.

The product of its (nonzero) digits is 5832, while the sum is 33.

The square root of 669000219 is about 25865.0385462694. The cubic root of 669000219 is about 874.5985506462.

The spelling of 669000219 in words is "six hundred sixty-nine million, two hundred nineteen", and thus it is an aban number.