3228316981 has 2 divisors, whose sum is σ = 3228316982. Its totient is φ = 3228316980.

The previous prime is 3228316957. The next prime is 3228316997. The reversal of 3228316981 is 1896138223.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 3044280625 + 184036356 = 55175^2 + 13566^2 .

It is a cyclic number.

It is not a de Polignac number, because 3228316981 - 2³¹ = 1080833333 is a prime.

It is a super-2 number, since 2×3228316981² = 20844061059625908722, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3228316921) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1614158490 + 1614158491.

It is an arithmetic number, because the mean of its divisors is an integer number (1614158491).

Almost surely, 2^3228316981 is an apocalyptic number.

It is an amenable number.

3228316981 is a deficient number, since it is larger than the sum of its proper divisors (1).

3228316981 is an equidigital number, since it uses as much as digits as its factorization.

3228316981 is an evil number, because the sum of its binary digits is even.

The product of its digits is 124416, while the sum is 43.

The square root of 3228316981 is about 56818.2803418055. The cubic root of 3228316981 is about 1477.9465344868.

The spelling of 3228316981 in words is "three billion, two hundred twenty-eight million, three hundred sixteen thousand, nine hundred eighty-one".