3221434387 has 2 divisors, whose sum is σ = 3221434388. Its totient is φ = 3221434386.

The previous prime is 3221434361. The next prime is 3221434457. The reversal of 3221434387 is 7834341223.

It is a weak prime.

It is an emirp because it is prime and its reverse (7834341223) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 3221434387 - 2³¹ = 1073950739 is a prime.

It is not a weakly prime, because it can be changed into another prime (3221434787) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1610717193 + 1610717194.

It is an arithmetic number, because the mean of its divisors is an integer number (1610717194).

Almost surely, 2^3221434387 is an apocalyptic number.

3221434387 is a deficient number, since it is larger than the sum of its proper divisors (1).

3221434387 is an equidigital number, since it uses as much as digits as its factorization.

3221434387 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 96768, while the sum is 37.

The square root of 3221434387 is about 56757.6813039433. The cubic root of 3221434387 is about 1476.8954870035.

The spelling of 3221434387 in words is "three billion, two hundred twenty-one million, four hundred thirty-four thousand, three hundred eighty-seven".