8321516 has 24 divisors (see below), whose sum is σ = 17181696. Its totient is φ = 3450960.

The previous prime is 8321507. The next prime is 8321519. The reversal of 8321516 is 6151238.

It is not an unprimeable number, because it can be changed into a prime (8321519) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3926 + ... + 5661.

It is an arithmetic number, because the mean of its divisors is an integer number (715904).

Almost surely, 2^8321516 is an apocalyptic number.

It is an amenable number.

8321516 is an abundant number, since it is smaller than the sum of its proper divisors (8860180).

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

8321516 is a wasteful number, since it uses less digits than its factorization.

8321516 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9629 (or 9627 counting only the distinct ones).

The product of its digits is 1440, while the sum is 26.

The square root of 8321516 is about 2884.7037976194. The cubic root of 8321516 is about 202.6441873055.

The spelling of 8321516 in words is "eight million, three hundred twenty-one thousand, five hundred sixteen".