4322221987 has 2 divisors, whose sum is σ = 4322221988. Its totient is φ = 4322221986.

The previous prime is 4322221979. The next prime is 4322222053. The reversal of 4322221987 is 7891222234.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 4322221987 - 2³ = 4322221979 is a prime.

It is not a weakly prime, because it can be changed into another prime (4322224987) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2161110993 + 2161110994.

It is an arithmetic number, because the mean of its divisors is an integer number (2161110994).

Almost surely, 2^4322221987 is an apocalyptic number.

4322221987 is a deficient number, since it is larger than the sum of its proper divisors (1).

4322221987 is an equidigital number, since it uses as much as digits as its factorization.

4322221987 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 96768, while the sum is 40.

The square root of 4322221987 is about 65743.6079554507. The cubic root of 4322221987 is about 1628.9297536084.

The spelling of 4322221987 in words is "four billion, three hundred twenty-two million, two hundred twenty-one thousand, nine hundred eighty-seven".