3597459721 has 2 divisors, whose sum is σ = 3597459722. Its totient is φ = 3597459720.

The previous prime is 3597459707. The next prime is 3597459757. The reversal of 3597459721 is 1279547953.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2151939321 + 1445520400 = 46389^2 + 38020^2 .

It is a cyclic number.

It is not a de Polignac number, because 3597459721 - 2⁹ = 3597459209 is a prime.

It is not a weakly prime, because it can be changed into another prime (3597451721) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1798729860 + 1798729861.

It is an arithmetic number, because the mean of its divisors is an integer number (1798729861).

Almost surely, 2^3597459721 is an apocalyptic number.

It is an amenable number.

3597459721 is a deficient number, since it is larger than the sum of its proper divisors (1).

3597459721 is an equidigital number, since it uses as much as digits as its factorization.

3597459721 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2381400, while the sum is 52.

The square root of 3597459721 is about 59978.8272726301. The cubic root of 3597459721 is about 1532.2582911187.

The spelling of 3597459721 in words is "three billion, five hundred ninety-seven million, four hundred fifty-nine thousand, seven hundred twenty-one".