3220731373 has 2 divisors, whose sum is σ = 3220731374. Its totient is φ = 3220731372.

The previous prime is 3220731337. The next prime is 3220731383. The reversal of 3220731373 is 3731370223.

Together with previous prime (3220731337) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 3209562409 + 11168964 = 56653^2 + 3342^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3220731373 is a prime.

It is a super-2 number, since 2×3220731373² = 20746221154052930258, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3220731383) 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, 1610365686 + 1610365687.

It is an arithmetic number, because the mean of its divisors is an integer number (1610365687).

Almost surely, 2^3220731373 is an apocalyptic number.

It is an amenable number.

3220731373 is a deficient number, since it is larger than the sum of its proper divisors (1).

3220731373 is an equidigital number, since it uses as much as digits as its factorization.

3220731373 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 15876, while the sum is 31.

The square root of 3220731373 is about 56751.4878483375. The cubic root of 3220731373 is about 1476.7880448295.

The spelling of 3220731373 in words is "three billion, two hundred twenty million, seven hundred thirty-one thousand, three hundred seventy-three".