35230721 has 2 divisors, whose sum is σ = 35230722. Its totient is φ = 35230720.

The previous prime is 35230673. The next prime is 35230781. The reversal of 35230721 is 12703253.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 32947600 + 2283121 = 5740^2 + 1511^2 .

It is a cyclic number.

It is not a de Polignac number, because 35230721 - 2¹⁰ = 35229697 is a prime.

It is not a weakly prime, because it can be changed into another prime (35230781) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 17615360 + 17615361.

It is an arithmetic number, because the mean of its divisors is an integer number (17615361).

Almost surely, 2^35230721 is an apocalyptic number.

It is an amenable number.

35230721 is a deficient number, since it is larger than the sum of its proper divisors (1).

35230721 is an equidigital number, since it uses as much as digits as its factorization.

35230721 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1260, while the sum is 23.

The square root of 35230721 is about 5935.5472367761. The cubic root of 35230721 is about 327.8238228227.

Adding to 35230721 its reverse (12703253), we get a palindrome (47933974).

The spelling of 35230721 in words is "thirty-five million, two hundred thirty thousand, seven hundred twenty-one".