82189066 has 8 divisors (see below), whose sum is σ = 124254720. Its totient is φ = 40770828.

The previous prime is 82189043. The next prime is 82189069. The reversal of 82189066 is 66098128.

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

It is not an unprimeable number, because it can be changed into a prime (82189069) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 161536 + ... + 162043.

It is an arithmetic number, because the mean of its divisors is an integer number (15531840).

Almost surely, 2^82189066 is an apocalyptic number.

82189066 is a deficient number, since it is larger than the sum of its proper divisors (42065654).

82189066 is a wasteful number, since it uses less digits than its factorization.

82189066 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 323708.

The product of its (nonzero) digits is 41472, while the sum is 40.

The square root of 82189066 is about 9065.8185510190. The cubic root of 82189066 is about 434.7817921756.

The spelling of 82189066 in words is "eighty-two million, one hundred eighty-nine thousand, sixty-six".