3228679981 has 2 divisors, whose sum is σ = 3228679982. Its totient is φ = 3228679980.

The previous prime is 3228679969. The next prime is 3228680071. The reversal of 3228679981 is 1899768223.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 3225104100 + 3575881 = 56790^2 + 1891^2 .

It is a cyclic number.

It is not a de Polignac number, because 3228679981 - 2⁹ = 3228679469 is a prime.

It is a super-2 number, since 2×3228679981² = 20848748839420320722, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3228677981) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1614339990 + 1614339991.

It is an arithmetic number, because the mean of its divisors is an integer number (1614339991).

Almost surely, 2^3228679981 is an apocalyptic number.

It is an amenable number.

3228679981 is a deficient number, since it is larger than the sum of its proper divisors (1).

3228679981 is an equidigital number, since it uses as much as digits as its factorization.

3228679981 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2612736, while the sum is 55.

The square root of 3228679981 is about 56821.4746464750. The cubic root of 3228679981 is about 1478.0019270735.

The spelling of 3228679981 in words is "three billion, two hundred twenty-eight million, six hundred seventy-nine thousand, nine hundred eighty-one".