669108 has 48 divisors (see below), whose sum is σ = 1761984. Its totient is φ = 195840.

The previous prime is 669107. The next prime is 669113. The reversal of 669108 is 801966.

669108 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Smith number, since the sum of its digits (30) coincides with the sum of the digits of its prime factors.

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 669108.

It is not an unprimeable number, because it can be changed into a prime (669107) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4816 + ... + 4952.

It is an arithmetic number, because the mean of its divisors is an integer number (36708).

2⁶⁶⁹¹⁰⁸ is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 669108, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (880992).

669108 is an abundant number, since it is smaller than the sum of its proper divisors (1092876).

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

669108 is a wasteful number, since it uses less digits than its factorization.

669108 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 192 (or 190 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 30.

The square root of 669108 is about 817.9902199904. The cubic root of 669108 is about 87.4645516273.

It can be divided in two parts, 669 and 108, that added together give a palindrome (777).

The spelling of 669108 in words is "six hundred sixty-nine thousand, one hundred eight".