82028666 has 8 divisors (see below), whose sum is σ = 127012224. Its totient is φ = 39691260.

The previous prime is 82028629. The next prime is 82028671. The reversal of 82028666 is 66682028.

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 661460 + ... + 661583.

It is an arithmetic number, because the mean of its divisors is an integer number (15876528).

Almost surely, 2^82028666 is an apocalyptic number.

82028666 is a deficient number, since it is larger than the sum of its proper divisors (44983558).

82028666 is a wasteful number, since it uses less digits than its factorization.

82028666 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1323076.

The product of its (nonzero) digits is 55296, while the sum is 38.

The square root of 82028666 is about 9056.9678148926. The cubic root of 82028666 is about 434.4987682503.

The spelling of 82028666 in words is "eighty-two million, twenty-eight thousand, six hundred sixty-six".