2028007889 has 2 divisors, whose sum is σ = 2028007890. Its totient is φ = 2028007888.

The previous prime is 2028007871. The next prime is 2028007901. The reversal of 2028007889 is 9887008202.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1696039489 + 331968400 = 41183^2 + 18220^2 .

It is a cyclic number.

It is not a de Polignac number, because 2028007889 - 2¹² = 2028003793 is a prime.

It is a super-2 number, since 2×2028007889² = 8225631995692472642, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (2028001889) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1014003944 + 1014003945.

It is an arithmetic number, because the mean of its divisors is an integer number (1014003945).

Almost surely, 2^2028007889 is an apocalyptic number.

It is an amenable number.

2028007889 is a deficient number, since it is larger than the sum of its proper divisors (1).

2028007889 is an equidigital number, since it uses as much as digits as its factorization.

2028007889 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 129024, while the sum is 44.

The square root of 2028007889 is about 45033.4085874032. The cubic root of 2028007889 is about 1265.7750959184.

The spelling of 2028007889 in words is "two billion, twenty-eight million, seven thousand, eight hundred eighty-nine".