3220708861 has 2 divisors, whose sum is σ = 3220708862. Its totient is φ = 3220708860.

The previous prime is 3220708831. The next prime is 3220708889. The reversal of 3220708861 is 1688070223.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 3114309636 + 106399225 = 55806^2 + 10315^2 .

It is a cyclic number.

It is not a de Polignac number, because 3220708861 - 2⁹ = 3220708349 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 3220708861.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3220708801) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1610354430 + 1610354431.

It is an arithmetic number, because the mean of its divisors is an integer number (1610354431).

Almost surely, 2^3220708861 is an apocalyptic number.

It is an amenable number.

3220708861 is a deficient number, since it is larger than the sum of its proper divisors (1).

3220708861 is an equidigital number, since it uses as much as digits as its factorization.

3220708861 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 32256, while the sum is 37.

The square root of 3220708861 is about 56751.2895095785. The cubic root of 3220708861 is about 1476.7846040448.

The spelling of 3220708861 in words is "three billion, two hundred twenty million, seven hundred eight thousand, eight hundred sixty-one".