669118 has 8 divisors (see below), whose sum is σ = 1017648. Its totient is φ = 329904.

The previous prime is 669113. The next prime is 669121. The reversal of 669118 is 811966.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-3 number, since 3×669118³ = 898730320623333096, which contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 669118.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (669113) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2146 + ... + 2437.

It is an arithmetic number, because the mean of its divisors is an integer number (127206).

2⁶⁶⁹¹¹⁸ is an apocalyptic number.

669118 is a deficient number, since it is larger than the sum of its proper divisors (348530).

669118 is a wasteful number, since it uses less digits than its factorization.

669118 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4658.

The product of its digits is 2592, while the sum is 31.

The square root of 669118 is about 817.9963325101. The cubic root of 669118 is about 87.4649873523.

It can be divided in two parts, 669 and 118, that added together give a palindrome (787).

The spelling of 669118 in words is "six hundred sixty-nine thousand, one hundred eighteen".