667108 has 12 divisors (see below), whose sum is σ = 1257340. Its totient is φ = 307872.

The previous prime is 667103. The next prime is 667123. The reversal of 667108 is 801766.

667108 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 304704 + 362404 = 552^2 + 602^2 .

It is a hoax number, since the sum of its digits (28) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (667103) 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, 6363 + ... + 6466.

2⁶⁶⁷¹⁰⁸ is an apocalyptic number.

It is an amenable number.

667108 is a deficient number, since it is larger than the sum of its proper divisors (590232).

667108 is a wasteful number, since it uses less digits than its factorization.

667108 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12846 (or 12844 counting only the distinct ones).

The product of its (nonzero) digits is 2016, while the sum is 28.

The square root of 667108 is about 816.7667965827. The cubic root of 667108 is about 87.3773192303.

Adding to 667108 its product of nonzero digits (2016), we get a square (669124 = 818²).

The spelling of 667108 in words is "six hundred sixty-seven thousand, one hundred eight".