667308 has 12 divisors (see below), whose sum is σ = 1557080. Its totient is φ = 222432.

The previous prime is 667283. The next prime is 667309. The reversal of 667308 is 803766.

667308 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (12).

It is a hoax number, since the sum of its digits (30) 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 (667309) 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, 27793 + ... + 27816.

2⁶⁶⁷³⁰⁸ is an apocalyptic number.

It is an amenable number.

667308 is an abundant number, since it is smaller than the sum of its proper divisors (889772).

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

667308 is a wasteful number, since it uses less digits than its factorization.

667308 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55616 (or 55614 counting only the distinct ones).

The product of its (nonzero) digits is 6048, while the sum is 30.

The square root of 667308 is about 816.8892213758. The cubic root of 667308 is about 87.3860503092.

The spelling of 667308 in words is "six hundred sixty-seven thousand, three hundred eight".