669339 has 12 divisors (see below), whose sum is σ = 1054872. Its totient is φ = 405600.

The previous prime is 669329. The next prime is 669359. The reversal of 669339 is 933966.

It is not a de Polignac number, because 669339 - 2¹⁷ = 538267 is a prime.

It is a plaindrome in base 14.

It is not an unprimeable number, because it can be changed into a prime (669329) 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 11 ways as a sum of consecutive naturals, for example, 3282 + ... + 3479.

It is an arithmetic number, because the mean of its divisors is an integer number (87906).

2⁶⁶⁹³³⁹ is an apocalyptic number.

669339 is a deficient number, since it is larger than the sum of its proper divisors (385533).

669339 is a wasteful number, since it uses less digits than its factorization.

669339 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6778 (or 6775 counting only the distinct ones).

The product of its digits is 26244, while the sum is 36.

The square root of 669339 is about 818.1314075379. The cubic root of 669339 is about 87.4746157659.

The spelling of 669339 in words is "six hundred sixty-nine thousand, three hundred thirty-nine".