667327271 has 8 divisors (see below), whose sum is σ = 722633184. Its totient is φ = 612588960.

The previous prime is 667327261. The next prime is 667327273. The reversal of 667327271 is 172723766.

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 667327271 - 2¹⁸ = 667065127 is a prime.

It is a super-3 number, since 3×667327271³ (a number of 27 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (667327273) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 139451 + ... + 144156.

It is an arithmetic number, because the mean of its divisors is an integer number (90329148).

Almost surely, 2^667327271 is an apocalyptic number.

667327271 is a deficient number, since it is larger than the sum of its proper divisors (55305913).

667327271 is a wasteful number, since it uses less digits than its factorization.

667327271 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 283801.

The product of its digits is 148176, while the sum is 41.

The square root of 667327271 is about 25832.6783551377. The cubic root of 667327271 is about 873.8689150018.

The spelling of 667327271 in words is "six hundred sixty-seven million, three hundred twenty-seven thousand, two hundred seventy-one".