3221789057 has 2 divisors, whose sum is σ = 3221789058. Its totient is φ = 3221789056.

The previous prime is 3221789033. The next prime is 3221789083. The reversal of 3221789057 is 7509871223.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1867622656 + 1354166401 = 43216^2 + 36799^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3221789057 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 3221788999 and 3221789017.

It is not a weakly prime, because it can be changed into another prime (3221789257) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1610894528 + 1610894529.

It is an arithmetic number, because the mean of its divisors is an integer number (1610894529).

Almost surely, 2^3221789057 is an apocalyptic number.

It is an amenable number.

3221789057 is a deficient number, since it is larger than the sum of its proper divisors (1).

3221789057 is an equidigital number, since it uses as much as digits as its factorization.

3221789057 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 211680, while the sum is 44.

The square root of 3221789057 is about 56760.8056408645. The cubic root of 3221789057 is about 1476.9496855620.

The spelling of 3221789057 in words is "three billion, two hundred twenty-one million, seven hundred eighty-nine thousand, fifty-seven".