7023004721 has 2 divisors, whose sum is σ = 7023004722. Its totient is φ = 7023004720.

The previous prime is 7023004717. The next prime is 7023004777. The reversal of 7023004721 is 1274003207.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 5836960000 + 1186044721 = 76400^2 + 34439^2 .

It is a cyclic number.

It is not a de Polignac number, because 7023004721 - 2² = 7023004717 is a prime.

It is a super-2 number, since 2×7023004721² = 98645190622376575682, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (7023004421) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3511502360 + 3511502361.

It is an arithmetic number, because the mean of its divisors is an integer number (3511502361).

Almost surely, 2^7023004721 is an apocalyptic number.

It is an amenable number.

7023004721 is a deficient number, since it is larger than the sum of its proper divisors (1).

7023004721 is an equidigital number, since it uses as much as digits as its factorization.

7023004721 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2352, while the sum is 26.

The square root of 7023004721 is about 83803.3693893032. The cubic root of 7023004721 is about 1915.0244365126.

Adding to 7023004721 its reverse (1274003207), we get a palindrome (8297007928).

The spelling of 7023004721 in words is "seven billion, twenty-three million, four thousand, seven hundred twenty-one".