7201216709 has 2 divisors, whose sum is σ = 7201216710. Its totient is φ = 7201216708.

The previous prime is 7201216697. The next prime is 7201216721. The reversal of 7201216709 is 9076121027.

It is a balanced prime because it is at equal distance from previous prime (7201216697) and next prime (7201216721).

It can be written as a sum of positive squares in only one way, i.e., 4672132609 + 2529084100 = 68353^2 + 50290^2 .

It is a cyclic number.

It is not a de Polignac number, because 7201216709 - 2¹⁶ = 7201151173 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (7201216769) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3600608354 + 3600608355.

It is an arithmetic number, because the mean of its divisors is an integer number (3600608355).

Almost surely, 2^7201216709 is an apocalyptic number.

It is an amenable number.

7201216709 is a deficient number, since it is larger than the sum of its proper divisors (1).

7201216709 is an equidigital number, since it uses as much as digits as its factorization.

7201216709 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 10584, while the sum is 35.

The square root of 7201216709 is about 84859.9829660600. The cubic root of 7201216709 is about 1931.0875334204.

The spelling of 7201216709 in words is "seven billion, two hundred one million, two hundred sixteen thousand, seven hundred nine".