667474327 has 4 divisors (see below), whose sum is σ = 718818520. Its totient is φ = 616130136.

The previous prime is 667474321. The next prime is 667474331. The reversal of 667474327 is 723474766.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 667474327 - 2¹¹ = 667472279 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (667474321) 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 3 ways as a sum of consecutive naturals, for example, 25672077 + ... + 25672102.

It is an arithmetic number, because the mean of its divisors is an integer number (179704630).

Almost surely, 2^667474327 is an apocalyptic number.

667474327 is a deficient number, since it is larger than the sum of its proper divisors (51344193).

667474327 is a wasteful number, since it uses less digits than its factorization.

667474327 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51344192.

The product of its digits is 1185408, while the sum is 46.

The square root of 667474327 is about 25835.5245156741. The cubic root of 667474327 is about 873.9331005143.

The spelling of 667474327 in words is "six hundred sixty-seven million, four hundred seventy-four thousand, three hundred twenty-seven".