8122816 has 42 divisors (see below), whose sum is σ = 17477232. Its totient is φ = 3744000.

The previous prime is 8122799. The next prime is 8122819. The reversal of 8122816 is 6182218.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8122819) 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 5 ways as a sum of consecutive naturals, for example, 10441 + ... + 11191.

Almost surely, 2^8122816 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 8122816, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (8738616).

8122816 is an abundant number, since it is smaller than the sum of its proper divisors (9354416).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

8122816 is a wasteful number, since it uses less digits than its factorization.

8122816 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 789 (or 766 counting only the distinct ones).

The product of its digits is 1536, while the sum is 28.

The square root of 8122816 is about 2850.0554380573. The cubic root of 8122816 is about 201.0182734639.

The spelling of 8122816 in words is "eight million, one hundred twenty-two thousand, eight hundred sixteen".