7068321 has 12 divisors (see below), whose sum is σ = 10995348. Its totient is φ = 4349664.

The previous prime is 7068301. The next prime is 7068329. The reversal of 7068321 is 1238607.

It can be written as a sum of positive squares in 2 ways, for example, as 3686400 + 3381921 = 1920^2 + 1839^2 .

It is not a de Polignac number, because 7068321 - 2¹¹ = 7066273 is a prime.

It is a super-2 number, since 2×7068321² = 99922323518082, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (7068329) 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 11 ways as a sum of consecutive naturals, for example, 30090 + ... + 30323.

It is an arithmetic number, because the mean of its divisors is an integer number (916279).

Almost surely, 2^7068321 is an apocalyptic number.

It is an amenable number.

7068321 is a deficient number, since it is larger than the sum of its proper divisors (3927027).

7068321 is a wasteful number, since it uses less digits than its factorization.

7068321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 60432 (or 60429 counting only the distinct ones).

The product of its (nonzero) digits is 2016, while the sum is 27.

The square root of 7068321 is about 2658.6314148449. The cubic root of 7068321 is about 191.9134538327.

The spelling of 7068321 in words is "seven million, sixty-eight thousand, three hundred twenty-one".