289412939 has 2 divisors, whose sum is σ = 289412940. Its totient is φ = 289412938.

The previous prime is 289412923. The next prime is 289412971. The reversal of 289412939 is 939214982.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 289412939 - 2⁴ = 289412923 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 289412893 and 289412902.

It is not a weakly prime, because it can be changed into another prime (289412339) 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 as a sum of consecutive naturals, namely, 144706469 + 144706470.

It is an arithmetic number, because the mean of its divisors is an integer number (144706470).

Almost surely, 2^289412939 is an apocalyptic number.

289412939 is a deficient number, since it is larger than the sum of its proper divisors (1).

289412939 is an equidigital number, since it uses as much as digits as its factorization.

289412939 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 279936, while the sum is 47.

The square root of 289412939 is about 17012.1409293481. The cubic root of 289412939 is about 661.4636472172.

The spelling of 289412939 in words is "two hundred eighty-nine million, four hundred twelve thousand, nine hundred thirty-nine".