7968321 has 8 divisors (see below), whose sum is σ = 11804960. Its totient is φ = 5312196.

The previous prime is 7968319. The next prime is 7968341. The reversal of 7968321 is 1238697.

It is not a de Polignac number, because 7968321 - 2¹ = 7968319 is a prime.

It is a Duffinian number.

It is a zygodrome in base 3.

It is not an unprimeable number, because it can be changed into a prime (7968341) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 147535 + ... + 147588.

It is an arithmetic number, because the mean of its divisors is an integer number (1475620).

Almost surely, 2^7968321 is an apocalyptic number.

It is an amenable number.

7968321 is a deficient number, since it is larger than the sum of its proper divisors (3836639).

7968321 is a wasteful number, since it uses less digits than its factorization.

7968321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 295132 (or 295126 counting only the distinct ones).

The product of its digits is 18144, while the sum is 36.

The square root of 7968321 is about 2822.8214608792. The cubic root of 7968321 is about 199.7356591067.

The spelling of 7968321 in words is "seven million, nine hundred sixty-eight thousand, three hundred twenty-one".