669596 has 24 divisors (see below), whose sum is σ = 1275120. Its totient is φ = 306432.

The previous prime is 669577. The next prime is 669607. The reversal of 669596 is 695966.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 669596.

It is an unprimeable number.

669596 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

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 7 ways as a sum of consecutive naturals, for example, 2810 + ... + 3038.

It is an arithmetic number, because the mean of its divisors is an integer number (53130).

2⁶⁶⁹⁵⁹⁶ is an apocalyptic number.

It is an amenable number.

669596 is a deficient number, since it is larger than the sum of its proper divisors (605524).

669596 is a wasteful number, since it uses less digits than its factorization.

669596 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 293 (or 291 counting only the distinct ones).

The product of its digits is 87480, while the sum is 41.

The square root of 669596 is about 818.2884576969. The cubic root of 669596 is about 87.4858099438.

It can be divided in two parts, 66 and 9596, that multiplied together give a palindrome (633336).

The spelling of 669596 in words is "six hundred sixty-nine thousand, five hundred ninety-six".