669569353 has 8 divisors (see below), whose sum is σ = 717565248. Its totient is φ = 623147184.

The previous prime is 669569311. The next prime is 669569387. The reversal of 669569353 is 353965966.

It is a happy number.

669569353 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is not a de Polignac number, because 669569353 - 2⁹ = 669568841 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 669569353.

It is not an unprimeable number, because it can be changed into a prime (669569393) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 392551 + ... + 394252.

It is an arithmetic number, because the mean of its divisors is an integer number (89695656).

Almost surely, 2^669569353 is an apocalyptic number.

It is an amenable number.

669569353 is a deficient number, since it is larger than the sum of its proper divisors (47995895).

669569353 is a wasteful number, since it uses less digits than its factorization.

669569353 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 786863.

The product of its digits is 3936600, while the sum is 52.

The square root of 669569353 is about 25876.0382013940. The cubic root of 669569353 is about 874.8464941052.

The spelling of 669569353 in words is "six hundred sixty-nine million, five hundred sixty-nine thousand, three hundred fifty-three".