7921316 has 24 divisors (see below), whose sum is σ = 15005760. Its totient is φ = 3637152.

The previous prime is 7921313. The next prime is 7921351. The reversal of 7921316 is 6131297.

It is not an unprimeable number, because it can be changed into a prime (7921313) 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 7 ways as a sum of consecutive naturals, for example, 17825 + ... + 18263.

It is an arithmetic number, because the mean of its divisors is an integer number (625240).

Almost surely, 2^7921316 is an apocalyptic number.

It is an amenable number.

7921316 is a deficient number, since it is larger than the sum of its proper divisors (7084444).

7921316 is a wasteful number, since it uses less digits than its factorization.

7921316 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 803 (or 801 counting only the distinct ones).

The product of its digits is 2268, while the sum is 29.

The square root of 7921316 is about 2814.4832563012. The cubic root of 7921316 is about 199.3421384636.

The spelling of 7921316 in words is "seven million, nine hundred twenty-one thousand, three hundred sixteen".