2399989289 has 2 divisors, whose sum is σ = 2399989290. Its totient is φ = 2399989288.

The previous prime is 2399989271. The next prime is 2399989321. The reversal of 2399989289 is 9829899932.

2399989289 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1295424064 + 1104565225 = 35992^2 + 33235^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2399989289 is a prime.

It is not a weakly prime, because it can be changed into another prime (2399989789) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1199994644 + 1199994645.

It is an arithmetic number, because the mean of its divisors is an integer number (1199994645).

Almost surely, 2^2399989289 is an apocalyptic number.

It is an amenable number.

2399989289 is a deficient number, since it is larger than the sum of its proper divisors (1).

2399989289 is an equidigital number, since it uses as much as digits as its factorization.

2399989289 is an evil number, because the sum of its binary digits is even.

The product of its digits is 45349632, while the sum is 68.

The square root of 2399989289 is about 48989.6855368556. The cubic root of 2399989289 is about 1338.8639084124.

The spelling of 2399989289 in words is "two billion, three hundred ninety-nine million, nine hundred eighty-nine thousand, two hundred eighty-nine".