83813218 has 8 divisors (see below), whose sum is σ = 132336720. Its totient is φ = 39700980.

The previous prime is 83813201. The next prime is 83813227. The reversal of 83813218 is 81231838.

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1102768 + ... + 1102843.

It is an arithmetic number, because the mean of its divisors is an integer number (16542090).

Almost surely, 2^83813218 is an apocalyptic number.

83813218 is a deficient number, since it is larger than the sum of its proper divisors (48523502).

83813218 is a wasteful number, since it uses less digits than its factorization.

83813218 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2205632.

The product of its digits is 9216, while the sum is 34.

The square root of 83813218 is about 9154.9559256176. The cubic root of 83813218 is about 437.6270638278.

The spelling of 83813218 in words is "eighty-three million, eight hundred thirteen thousand, two hundred eighteen".