667376 has 20 divisors (see below), whose sum is σ = 1319112. Its totient is φ = 326976.

The previous prime is 667367. The next prime is 667379. The reversal of 667376 is 673766.

667376 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an Ulam number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (667379) by changing a digit.

667376 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 455 + ... + 1241.

2⁶⁶⁷³⁷⁶ is an apocalyptic number.

It is an amenable number.

667376 is a deficient number, since it is larger than the sum of its proper divisors (651736).

667376 is a wasteful number, since it uses less digits than its factorization.

667376 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 848 (or 842 counting only the distinct ones).

The product of its digits is 31752, while the sum is 35.

The square root of 667376 is about 816.9308416261. The cubic root of 667376 is about 87.3890184786.

The spelling of 667376 in words is "six hundred sixty-seven thousand, three hundred seventy-six".