8212321716 has 96 divisors (see below), whose sum is σ = 20598157440. Its totient is φ = 2537472000.

The previous prime is 8212321657. The next prime is 8212321727. The reversal of 8212321716 is 6171232128.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4346500 + ... + 4348388.

It is an arithmetic number, because the mean of its divisors is an integer number (214564140).

Almost surely, 2^8212321716 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 8212321716, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (10299078720).

8212321716 is an abundant number, since it is smaller than the sum of its proper divisors (12385835724).

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

8212321716 is a wasteful number, since it uses less digits than its factorization.

8212321716 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2225 (or 2223 counting only the distinct ones).

The product of its digits is 8064, while the sum is 33.

The square root of 8212321716 is about 90621.8611373657. The cubic root of 8212321716 is about 2017.5392146838.

The spelling of 8212321716 in words is "eight billion, two hundred twelve million, three hundred twenty-one thousand, seven hundred sixteen".