2889909897 has 12 divisors (see below), whose sum is σ = 4482309456. Its totient is φ = 1651377000.

The previous prime is 2889909889. The next prime is 2889909923. The reversal of 2889909897 is 7989099882.

It is not a de Polignac number, because 2889909897 - 2³ = 2889909889 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2889909877) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 9829479 + ... + 9829772.

It is an arithmetic number, because the mean of its divisors is an integer number (373525788).

Almost surely, 2^2889909897 is an apocalyptic number.

It is an amenable number.

2889909897 is a deficient number, since it is larger than the sum of its proper divisors (1592399559).

2889909897 is a wasteful number, since it uses less digits than its factorization.

2889909897 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19659268 (or 19659261 counting only the distinct ones).

The product of its (nonzero) digits is 47029248, while the sum is 69.

The square root of 2889909897 is about 53757.8821848480. The cubic root of 2889909897 is about 1424.3873261560.

The spelling of 2889909897 in words is "two billion, eight hundred eighty-nine million, nine hundred nine thousand, eight hundred ninety-seven".