84213218 has 16 divisors (see below), whose sum is σ = 127507200. Its totient is φ = 41713056.

The previous prime is 84213209. The next prime is 84213229. The reversal of 84213218 is 81231248.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 181655 + ... + 182117.

It is an arithmetic number, because the mean of its divisors is an integer number (7969200).

Almost surely, 2^84213218 is an apocalyptic number.

84213218 is a deficient number, since it is larger than the sum of its proper divisors (43293982).

84213218 is a wasteful number, since it uses less digits than its factorization.

84213218 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1121.

The product of its digits is 3072, while the sum is 29.

The square root of 84213218 is about 9176.7760133938. The cubic root of 84213218 is about 438.3221534093.

The spelling of 84213218 in words is "eighty-four million, two hundred thirteen thousand, two hundred eighteen".