3221630647 has 2 divisors, whose sum is σ = 3221630648. Its totient is φ = 3221630646.

The previous prime is 3221630627. The next prime is 3221630669. The reversal of 3221630647 is 7460361223.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 3221630647 - 2¹⁹ = 3221106359 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3221630627) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1610815323 + 1610815324.

It is an arithmetic number, because the mean of its divisors is an integer number (1610815324).

Almost surely, 2^3221630647 is an apocalyptic number.

3221630647 is a deficient number, since it is larger than the sum of its proper divisors (1).

3221630647 is an equidigital number, since it uses as much as digits as its factorization.

3221630647 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 36288, while the sum is 34.

The square root of 3221630647 is about 56759.4102065904. The cubic root of 3221630647 is about 1476.9254787801.

The spelling of 3221630647 in words is "three billion, two hundred twenty-one million, six hundred thirty thousand, six hundred forty-seven".