669508 has 12 divisors (see below), whose sum is σ = 1339072. Its totient is φ = 286920.

The previous prime is 669481. The next prime is 669527. The reversal of 669508 is 805966.

669508 is an admirable number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11928 + ... + 11983.

2⁶⁶⁹⁵⁰⁸ is an apocalyptic number.

It is an amenable number.

669508 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

669508 is a wasteful number, since it uses less digits than its factorization.

669508 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23922 (or 23920 counting only the distinct ones).

The product of its (nonzero) digits is 12960, while the sum is 34.

The square root of 669508 is about 818.2346851607. The cubic root of 669508 is about 87.4819772404.

The spelling of 669508 in words is "six hundred sixty-nine thousand, five hundred eight".