3281223997 has 2 divisors, whose sum is σ = 3281223998. Its totient is φ = 3281223996.

The previous prime is 3281223991. The next prime is 3281224013. The reversal of 3281223997 is 7993221823.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2473470756 + 807753241 = 49734^2 + 28421^2 .

It is a cyclic number.

It is not a de Polignac number, because 3281223997 - 2²³ = 3272835389 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3281223991) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1640611998 + 1640611999.

It is an arithmetic number, because the mean of its divisors is an integer number (1640611999).

Almost surely, 2^3281223997 is an apocalyptic number.

It is an amenable number.

3281223997 is a deficient number, since it is larger than the sum of its proper divisors (1).

3281223997 is an equidigital number, since it uses as much as digits as its factorization.

3281223997 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 326592, while the sum is 46.

The square root of 3281223997 is about 57281.9692137063. The cubic root of 3281223997 is about 1485.9765628521.

The spelling of 3281223997 in words is "three billion, two hundred eighty-one million, two hundred twenty-three thousand, nine hundred ninety-seven".