669383 has 16 divisors (see below), whose sum is σ = 817152. Its totient is φ = 540000.

The previous prime is 669379. The next prime is 669391. The reversal of 669383 is 383966.

It is a cyclic number.

It is not a de Polignac number, because 669383 - 2² = 669379 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (669283) 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 in 15 ways as a sum of consecutive naturals, for example, 4358 + ... + 4508.

It is an arithmetic number, because the mean of its divisors is an integer number (51072).

2⁶⁶⁹³⁸³ is an apocalyptic number.

669383 is a deficient number, since it is larger than the sum of its proper divisors (147769).

669383 is a wasteful number, since it uses less digits than its factorization.

669383 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 206.

The product of its digits is 23328, while the sum is 35.

The square root of 669383 is about 818.1582976417. The cubic root of 669383 is about 87.4765324821.

It can be divided in two parts, 6693 and 83, that added together give a palindrome (6776).

The spelling of 669383 in words is "six hundred sixty-nine thousand, three hundred eighty-three".