66982 has 8 divisors (see below), whose sum is σ = 101736. Its totient is φ = 33072.

The previous prime is 66977. The next prime is 67003. The reversal of 66982 is 28966.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

66982 is an untouchable number, because it is not equal to the sum of proper divisors of any 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, 58 + ... + 370.

It is an arithmetic number, because the mean of its divisors is an integer number (12717).

2⁶⁶⁹⁸² is an apocalyptic number.

66982 is a deficient number, since it is larger than the sum of its proper divisors (34754).

66982 is a wasteful number, since it uses less digits than its factorization.

66982 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 422.

The product of its digits is 5184, while the sum is 31.

The square root of 66982 is about 258.8088097419. The cubic root of 66982 is about 40.6118434714.

The spelling of 66982 in words is "sixty-six thousand, nine hundred eighty-two".