66846227 has 8 divisors (see below), whose sum is σ = 80889696. Its totient is φ = 53926272.

The previous prime is 66846223. The next prime is 66846229. The reversal of 66846227 is 72264866.

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 66846227 - 2² = 66846223 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (66846223) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 280748 + ... + 280985.

It is an arithmetic number, because the mean of its divisors is an integer number (10111212).

Almost surely, 2^66846227 is an apocalyptic number.

66846227 is a deficient number, since it is larger than the sum of its proper divisors (14043469).

66846227 is a wasteful number, since it uses less digits than its factorization.

66846227 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 561757.

The product of its digits is 193536, while the sum is 41.

The square root of 66846227 is about 8175.9541950772. The cubic root of 66846227 is about 405.8438474293.

The spelling of 66846227 in words is "sixty-six million, eight hundred forty-six thousand, two hundred twenty-seven".