8321312 has 24 divisors (see below), whose sum is σ = 16447536. Its totient is φ = 4144192.

The previous prime is 8321311. The next prime is 8321321. The reversal of 8321312 is 2131238.

It is not an unprimeable number, because it can be changed into a prime (8321311) 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, 13883 + ... + 14469.

It is an arithmetic number, because the mean of its divisors is an integer number (685314).

Almost surely, 2^8321312 is an apocalyptic number.

It is an amenable number.

8321312 is a deficient number, since it is larger than the sum of its proper divisors (8126224).

8321312 is a wasteful number, since it uses less digits than its factorization.

8321312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1040 (or 1032 counting only the distinct ones).

The product of its digits is 288, while the sum is 20.

The square root of 8321312 is about 2884.6684384865. The cubic root of 8321312 is about 202.6425313672.

The spelling of 8321312 in words is "eight million, three hundred twenty-one thousand, three hundred twelve".