7010721 has 12 divisors (see below), whose sum is σ = 10476180. Its totient is φ = 4512480.

The previous prime is 7010719. The next prime is 7010789. The reversal of 7010721 is 1270107.

It can be written as a sum of positive squares in 2 ways, for example, as 1535121 + 5475600 = 1239^2 + 2340^2 .

It is not a de Polignac number, because 7010721 - 2¹ = 7010719 is a prime.

It is an alternating number because its digits alternate between odd and even.

It is a junction number, because it is equal to n+sod(n) for n = 7010694 and 7010703.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7010021) 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, 13170 + ... + 13691.

It is an arithmetic number, because the mean of its divisors is an integer number (873015).

Almost surely, 2^7010721 is an apocalyptic number.

It is an amenable number.

7010721 is a deficient number, since it is larger than the sum of its proper divisors (3465459).

7010721 is a wasteful number, since it uses less digits than its factorization.

7010721 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26896 (or 26893 counting only the distinct ones).

The product of its (nonzero) digits is 98, while the sum is 18.

The square root of 7010721 is about 2647.7766144447. The cubic root of 7010721 is about 191.3907281535.

Adding to 7010721 its reverse (1270107), we get a palindrome (8280828).

The spelling of 7010721 in words is "seven million, ten thousand, seven hundred twenty-one".