66847027 has 8 divisors (see below), whose sum is σ = 72407664. Its totient is φ = 61346208.

The previous prime is 66847021. The next prime is 66847031. The reversal of 66847027 is 72074866.

66847027 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 66847027 - 2¹⁵ = 66814259 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (66847021) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12613 + ... + 17110.

It is an arithmetic number, because the mean of its divisors is an integer number (9050958).

Almost surely, 2^66847027 is an apocalyptic number.

66847027 is a deficient number, since it is larger than the sum of its proper divisors (5560637).

66847027 is a wasteful number, since it uses less digits than its factorization.

66847027 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29909.

The product of its (nonzero) digits is 112896, while the sum is 40.

The square root of 66847027 is about 8176.0031188839. The cubic root of 66847027 is about 405.8454664375.

The spelling of 66847027 in words is "sixty-six million, eight hundred forty-seven thousand, twenty-seven".