669914 has 16 divisors (see below), whose sum is σ = 1161600. Its totient is φ = 283824.

The previous prime is 669913. The next prime is 669923. The reversal of 669914 is 419966.

669914 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 (35) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 669914.

It is not an unprimeable number, because it can be changed into a prime (669913) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1307 + ... + 1745.

It is an arithmetic number, because the mean of its divisors is an integer number (72600).

2⁶⁶⁹⁹¹⁴ is an apocalyptic number.

669914 is a deficient number, since it is larger than the sum of its proper divisors (491686).

669914 is a wasteful number, since it uses less digits than its factorization.

669914 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 557.

The product of its digits is 11664, while the sum is 35.

The square root of 669914 is about 818.4827426403. The cubic root of 669914 is about 87.4996571415.

The spelling of 669914 in words is "six hundred sixty-nine thousand, nine hundred fourteen".