2029889 has 2 divisors, whose sum is σ = 2029890. Its totient is φ = 2029888.

The previous prime is 2029879. The next prime is 2029891. The reversal of 2029889 is 9889202.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1690000 + 339889 = 1300^2 + 583^2 .

It is a cyclic number.

It is not a de Polignac number, because 2029889 - 2⁴ = 2029873 is a prime.

Together with 2029891, 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 (2029829) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1014944 + 1014945.

It is an arithmetic number, because the mean of its divisors is an integer number (1014945).

2^2029889 is an apocalyptic number.

It is an amenable number.

2029889 is a deficient number, since it is larger than the sum of its proper divisors (1).

2029889 is an equidigital number, since it uses as much as digits as its factorization.

2029889 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 20736, while the sum is 38.

The square root of 2029889 is about 1424.7417309814. The cubic root of 2029889 is about 126.6166338255.

The spelling of 2029889 in words is "two million, twenty-nine thousand, eight hundred eighty-nine".