66286327 has 4 divisors (see below), whose sum is σ = 66561616. Its totient is φ = 66011040.

The previous prime is 66286313. The next prime is 66286333. The reversal of 66286327 is 72368266.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-66286327 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 66286327.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66286387) 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 3 ways as a sum of consecutive naturals, for example, 137283 + ... + 137764.

It is an arithmetic number, because the mean of its divisors is an integer number (16640404).

Almost surely, 2^66286327 is an apocalyptic number.

66286327 is a deficient number, since it is larger than the sum of its proper divisors (275289).

66286327 is a wasteful number, since it uses less digits than its factorization.

66286327 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 275288.

The product of its digits is 145152, while the sum is 40.

The square root of 66286327 is about 8141.6415420970. The cubic root of 66286327 is about 404.7075610782.

The spelling of 66286327 in words is "sixty-six million, two hundred eighty-six thousand, three hundred twenty-seven".