35244721 has 2 divisors, whose sum is σ = 35244722. Its totient is φ = 35244720.

The previous prime is 35244719. The next prime is 35244731. The reversal of 35244721 is 12744253.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 27709696 + 7535025 = 5264^2 + 2745^2 .

It is a cyclic number.

It is not a de Polignac number, because 35244721 - 2¹ = 35244719 is a prime.

Together with 35244719, it forms a pair of twin primes.

It is a self number, because there is not a number n which added to its sum of digits gives 35244721.

It is not a weakly prime, because it can be changed into another prime (35244731) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 17622360 + 17622361.

It is an arithmetic number, because the mean of its divisors is an integer number (17622361).

Almost surely, 2^35244721 is an apocalyptic number.

It is an amenable number.

35244721 is a deficient number, since it is larger than the sum of its proper divisors (1).

35244721 is an equidigital number, since it uses as much as digits as its factorization.

35244721 is an evil number, because the sum of its binary digits is even.

The product of its digits is 6720, while the sum is 28.

The square root of 35244721 is about 5936.7264548739. The cubic root of 35244721 is about 327.8672406656.

Adding to 35244721 its reverse (12744253), we get a palindrome (47988974).

The spelling of 35244721 in words is "thirty-five million, two hundred forty-four thousand, seven hundred twenty-one".