667338 has 16 divisors (see below), whose sum is σ = 1525440. Its totient is φ = 190656.

The previous prime is 667333. The next prime is 667351. The reversal of 667338 is 833766.

It is a happy number.

667338 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 667299 and 667308.

It is not an unprimeable number, because it can be changed into a prime (667333) 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, 7903 + ... + 7986.

It is an arithmetic number, because the mean of its divisors is an integer number (95340).

2⁶⁶⁷³³⁸ is an apocalyptic number.

667338 is an abundant number, since it is smaller than the sum of its proper divisors (858102).

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

667338 is a wasteful number, since it uses less digits than its factorization.

667338 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15901.

The product of its digits is 18144, while the sum is 33.

The square root of 667338 is about 816.9075835124. The cubic root of 667338 is about 87.3873598206.

The spelling of 667338 in words is "six hundred sixty-seven thousand, three hundred thirty-eight".