8218834 has 8 divisors (see below), whose sum is σ = 13276620. Its totient is φ = 3793296.

The previous prime is 8218831. The next prime is 8218853. The reversal of 8218834 is 4388128.

It can be written as a sum of positive squares in 2 ways, for example, as 8208225 + 10609 = 2865^2 + 103^2 .

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

It is a self number, because there is not a number n which added to its sum of digits gives 8218834.

It is not an unprimeable number, because it can be changed into a prime (8218831) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 158029 + ... + 158080.

Almost surely, 2^8218834 is an apocalyptic number.

8218834 is a deficient number, since it is larger than the sum of its proper divisors (5057786).

8218834 is a wasteful number, since it uses less digits than its factorization.

8218834 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 316124.

The product of its digits is 12288, while the sum is 34.

The square root of 8218834 is about 2866.8508855537. The cubic root of 8218834 is about 201.8072369511.

The spelling of 8218834 in words is "eight million, two hundred eighteen thousand, eight hundred thirty-four".