667371 has 8 divisors (see below), whose sum is σ = 896400. Its totient is φ = 441632.

The previous prime is 667367. The next prime is 667379. The reversal of 667371 is 173766.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 667371 - 2² = 667367 is a prime.

It is not an unprimeable number, because it can be changed into a prime (667379) 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, 300 + ... + 1193.

It is an arithmetic number, because the mean of its divisors is an integer number (112050).

2⁶⁶⁷³⁷¹ is an apocalyptic number.

667371 is a deficient number, since it is larger than the sum of its proper divisors (229029).

667371 is a wasteful number, since it uses less digits than its factorization.

667371 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1645.

The product of its digits is 5292, while the sum is 30.

The square root of 667371 is about 816.9277813858. The cubic root of 667371 is about 87.3888002378.

The spelling of 667371 in words is "six hundred sixty-seven thousand, three hundred seventy-one".