2197882889 has 2 divisors, whose sum is σ = 2197882890. Its totient is φ = 2197882888.

The previous prime is 2197882853. The next prime is 2197882891. The reversal of 2197882889 is 9882887912.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1893729289 + 304153600 = 43517^2 + 17440^2 .

It is a cyclic number.

It is not a de Polignac number, because 2197882889 - 2²⁴ = 2181105673 is a prime.

Together with 2197882891, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (2197882849) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1098941444 + 1098941445.

It is an arithmetic number, because the mean of its divisors is an integer number (1098941445).

Almost surely, 2^2197882889 is an apocalyptic number.

It is an amenable number.

2197882889 is a deficient number, since it is larger than the sum of its proper divisors (1).

2197882889 is an equidigital number, since it uses as much as digits as its factorization.

2197882889 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 9289728, while the sum is 62.

The square root of 2197882889 is about 46881.5836869874. The cubic root of 2197882889 is about 1300.1741165207.

The spelling of 2197882889 in words is "two billion, one hundred ninety-seven million, eight hundred eighty-two thousand, eight hundred eighty-nine".