7003075721 has 8 divisors (see below), whose sum is σ = 7037345280. Its totient is φ = 6968832192.

The previous prime is 7003075711. The next prime is 7003075757. The reversal of 7003075721 is 1275703007.

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

It is a cyclic number.

It is not a de Polignac number, because 7003075721 - 2²⁶ = 6935966857 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (7003075711) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 734060 + ... + 743538.

It is an arithmetic number, because the mean of its divisors is an integer number (879668160).

Almost surely, 2^7003075721 is an apocalyptic number.

It is an amenable number.

7003075721 is a deficient number, since it is larger than the sum of its proper divisors (34269559).

7003075721 is a wasteful number, since it uses less digits than its factorization.

7003075721 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13015.

The product of its (nonzero) digits is 10290, while the sum is 32.

The square root of 7003075721 is about 83684.3815834233. The cubic root of 7003075721 is about 1913.2113152050.

Adding to 7003075721 its reverse (1275703007), we get a palindrome (8278778728).

The spelling of 7003075721 in words is "seven billion, three million, seventy-five thousand, seven hundred twenty-one".