7068721 has 8 divisors (see below), whose sum is σ = 7977600. Its totient is φ = 6204240.

The previous prime is 7068707. The next prime is 7068749. The reversal of 7068721 is 1278607.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-7068721 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (7068781) 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, 10761 + ... + 11398.

It is an arithmetic number, because the mean of its divisors is an integer number (997200).

Almost surely, 2^7068721 is an apocalyptic number.

It is an amenable number.

7068721 is a deficient number, since it is larger than the sum of its proper divisors (908879).

7068721 is a wasteful number, since it uses less digits than its factorization.

7068721 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22199.

The product of its (nonzero) digits is 4704, while the sum is 31.

The square root of 7068721 is about 2658.7066404551. The cubic root of 7068721 is about 191.9170739255.

It can be divided in two parts, 7068 and 721, that multiplied together give a triangular number (5096028 = T₃₁₉₂).

The spelling of 7068721 in words is "seven million, sixty-eight thousand, seven hundred twenty-one".