2904239889 has 12 divisors (see below), whose sum is σ = 4415803600. Its totient is φ = 1834256664.

The previous prime is 2904239873. The next prime is 2904239893. The reversal of 2904239889 is 9889324092.

It is a happy number.

2904239889 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 2904239889 - 2⁴ = 2904239873 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2904239089) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 8491759 + ... + 8492100.

Almost surely, 2^2904239889 is an apocalyptic number.

It is an amenable number.

2904239889 is a deficient number, since it is larger than the sum of its proper divisors (1511563711).

2904239889 is a wasteful number, since it uses less digits than its factorization.

2904239889 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16983884 (or 16983881 counting only the distinct ones).

The product of its (nonzero) digits is 2239488, while the sum is 54.

The square root of 2904239889 is about 53891.0000742239. Note that the first 4 decimals coincide. The cubic root of 2904239889 is about 1426.7377816753.

The spelling of 2904239889 in words is "two billion, nine hundred four million, two hundred thirty-nine thousand, eight hundred eighty-nine".