82108218 has 16 divisors (see below), whose sum is σ = 164900736. Its totient is φ = 27255360.

The previous prime is 82108207. The next prime is 82108219. The reversal of 82108218 is 81280128.

It is not an unprimeable number, because it can be changed into a prime (82108219) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 26946 + ... + 29837.

It is an arithmetic number, because the mean of its divisors is an integer number (10306296).

Almost surely, 2^82108218 is an apocalyptic number.

82108218 is an abundant number, since it is smaller than the sum of its proper divisors (82792518).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

82108218 is a wasteful number, since it uses less digits than its factorization.

82108218 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57029.

The product of its (nonzero) digits is 2048, while the sum is 30.

The square root of 82108218 is about 9061.3585074204. The cubic root of 82108218 is about 434.6391828958.

The spelling of 82108218 in words is "eighty-two million, one hundred eight thousand, two hundred eighteen".