66284 has 12 divisors (see below), whose sum is σ = 118104. Its totient is φ = 32544.

The previous prime is 66271. The next prime is 66293. The reversal of 66284 is 48266.

66284 = T₆₂ + T₆₃ + ... + T₈₅.

66284 is nontrivially palindromic in base 5.

It is a plaindrome in base 11.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 179 + ... + 405.

It is an arithmetic number, because the mean of its divisors is an integer number (9842).

2⁶⁶²⁸⁴ is an apocalyptic number.

It is an amenable number.

66284 is a deficient number, since it is larger than the sum of its proper divisors (51820).

66284 is a wasteful number, since it uses less digits than its factorization.

66284 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 304 (or 302 counting only the distinct ones).

The product of its digits is 2304, while the sum is 26.

The square root of 66284 is about 257.4567924915. The cubic root of 66284 is about 40.4702825232.

The spelling of 66284 in words is "sixty-six thousand, two hundred eighty-four".