666674573 has 8 divisors (see below), whose sum is σ = 695920896. Its totient is φ = 637450000.

The previous prime is 666674549. The next prime is 666674587. The reversal of 666674573 is 375476666.

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 666674573 - 2¹⁴ = 666658189 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 (666674773) 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, 106223 + ... + 112323.

It is an arithmetic number, because the mean of its divisors is an integer number (86990112).

Almost surely, 2^666674573 is an apocalyptic number.

It is an amenable number.

666674573 is a deficient number, since it is larger than the sum of its proper divisors (29246323).

666674573 is a wasteful number, since it uses less digits than its factorization.

666674573 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10875.

The product of its digits is 3810240, while the sum is 50.

The square root of 666674573 is about 25820.0420797488. The cubic root of 666674573 is about 873.5839181318.

The spelling of 666674573 in words is "six hundred sixty-six million, six hundred seventy-four thousand, five hundred seventy-three".