66382 has 4 divisors (see below), whose sum is σ = 99576. Its totient is φ = 33190.

The previous prime is 66377. The next prime is 66383. The reversal of 66382 is 28366.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66383) by changing a digit.

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 as a sum of consecutive naturals, namely, 16594 + ... + 16597.

It is an arithmetic number, because the mean of its divisors is an integer number (24894).

2⁶⁶³⁸² is an apocalyptic number.

66382 is a deficient number, since it is larger than the sum of its proper divisors (33194).

66382 is a wasteful number, since it uses less digits than its factorization.

66382 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33193.

The product of its digits is 1728, while the sum is 25.

The square root of 66382 is about 257.6470453935. The cubic root of 66382 is about 40.4902176241.

The spelling of 66382 in words is "sixty-six thousand, three hundred eighty-two".