83218108 has 6 divisors (see below), whose sum is σ = 145631696. Its totient is φ = 41609052.

The previous prime is 83218103. The next prime is 83218123. The reversal of 83218108 is 80181238.

83218108 is digitally balanced in base 9, because in such base it contains all the possibile digits an equal number of times.

83218108 is strictly pandigital in base 9.

It is a self number, because there is not a number n which added to its sum of digits gives 83218108.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (83218103) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10402260 + ... + 10402267.

Almost surely, 2^83218108 is an apocalyptic number.

It is an amenable number.

83218108 is a deficient number, since it is larger than the sum of its proper divisors (62413588).

83218108 is a wasteful number, since it uses less digits than its factorization.

83218108 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20804531 (or 20804529 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 31.

The square root of 83218108 is about 9122.3959572033. The cubic root of 83218108 is about 436.5888223090.

The spelling of 83218108 in words is "eighty-three million, two hundred eighteen thousand, one hundred eight".