83222218 has 8 divisors (see below), whose sum is σ = 124890048. Its totient is φ = 41592204.

The previous prime is 83222207. The next prime is 83222231. The reversal of 83222218 is 81222238.

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

It is a super-4 number, since 4×83222218⁴ (a number of 33 digits) contains 4444 as substring.

It is an unprimeable number.

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 in 3 ways as a sum of consecutive naturals, for example, 3096 + ... + 13267.

It is an arithmetic number, because the mean of its divisors is an integer number (15611256).

Almost surely, 2^83222218 is an apocalyptic number.

83222218 is a deficient number, since it is larger than the sum of its proper divisors (41667830).

83222218 is a wasteful number, since it uses less digits than its factorization.

83222218 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18908.

The product of its digits is 3072, while the sum is 28.

The square root of 83222218 is about 9122.6212241877. The cubic root of 83222218 is about 436.5960096490.

The spelling of 83222218 in words is "eighty-three million, two hundred twenty-two thousand, two hundred eighteen".